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[主观题]

Scientist 1’s viewpoint would be weakenedby which of the following observations about come

ts, if true?

A.Comets are composed mainly of frozen materials.

B.Comets are much larger than 100m in diameter.

C.Comets often pass close enough to Earth to inter-sect Earth’s atmosphere.

D.Comets orbit the Sun.

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更多“Scientist 1’s viewpoint would be weakenedby which of the following observations about come”相关的问题

第1题

By referring to the observation that DNA is found exclusively in the nucleus while protein

s are found throughout the cell, the scientist supporting the DNA Hypothesis implies that genes are made only of DNA because which of the following are also found only in the nucleus?

A.Amino acids

B.Proteins

C.Gametes

D.Chromosomes

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第2题

In Experiment 2, a result of shaking the can of flattasting beverage was that the:A.number

In Experiment 2, a result of shaking the can of flattasting beverage was that the:

A.number of bubbles in the beverage immediately decreased.

B.mass of the can of beverage increased.

C.roll time of the can of beverage decreased.

D.roll time of the can of beverage increased.

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第3题

Based on Figures 1 and 2, for a given mass of O2 at 22°C, how does the pressure exerted by

the O2 in a 6 L vessel compare to the pressure exerted by the O2 in a 3 L vessel? In the 6 L vessel, the O2 pressure will be:

A.as great as in the 3 L vessel.

B.the same as in the 3 L vessel.

C.2 times as great as in the 3 L vessel.

D.4 times as great as in the 3 L vessel.

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第4题

Based on Student 1’s discussion and Fact 4, while matter flowed between Algol A and Algol

B, Algol B produced the majority of its energy by fusing:

A.hydrogen nuclei to make helium nuclei at its center.

B.hydrogen nuclei to make helium nuclei in a shell surrounding its center.

C.helium nuclei to make hydrogen nuclei at its center.

D.helium nuclei to make hydrogen nuclei in a shell surrounding its center.

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第5题

In Experiment 2, the sample solution was neutral at which of the following values for the

volume of titrant added?

A.0.50 mL

B.1.00 mL

C.1.50 mL

D.2.00 mL

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第6题

Based on the results of Study 1, the average monthly wet deposition for Cu2+ over the 12-m

onth period was:

A.less than 50 μg/m2.

B.between 50 μg/m2 and 75 μg/m2.

C.between 75 μg/m2 and 100 μg/m2.

D.greater than 100 μg/m2.

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第7题

In each of the 13 trials, how did the magnitude of the electrical force exerted by Sphere

X on Sphere Y compare to the magnitude of the electrical force exerted by Sphere Y on Sphere X ?

A.The magnitude of the electrical force exerted by Sphere X on Sphere Y was greater than the magnitude of the electrical force exerted by Sphere Y on Sphere X.

B.The magnitude of the electrical force exerted by Sphere X on Sphere Y was less than the magnitude of the electrical force exerted by Sphere Y on Sphere X.

C.The magnitude of the electrical force exerted by Sphere X on Sphere Y was the same as the magnitude of the electrical force exerted by Sphere Y on Sphere X.

D.Cannot be determined from the given information

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第8题

Which of the offspring listed below were collected in Study 1 ? I. Juveniles II. Adults th

at were breeding III. Adults that were not breeding

A.I only

B.III only

C.I and III only

D.I, II, and III

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第9题

A chemist predicted that the volume of 02 reacted would increase at a faster rate if the n

umber of ZABs present in the stack of 3 batteries was increased. Do the results of Trials 1 and 3 support this prediction?

A.Yes, because the final volume was reached sooner in Trial 3 than it was in Trial 1.

B.Yes, because the final volume was reached sooner in Trial 1 than it was in Trial 3.

C.No, because the final volume was reached sooner in Trial 3 than it was in Trial 1.

D.No, because the final volume was reached sooner in Trial 1 than it was in Trial 3.

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第10题

In the 2 studies, the purpose of oven-drying the mixed soil was to remove all the:A.moistu

In the 2 studies, the purpose of oven-drying the mixed soil was to remove all the:

A.moisture.

B.organic matter.

C.soil test N.

D.amino sugar N.

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