使用电阻应变仪时，在半桥双臂各并联一片电阻应变片可以提高灵敏度。

Einstein’s__________of relativity explains the motion of moving objects．

A.idea

B.concept

C.theory

D.thiriking

How did Einstein explain Relativity to young students？

A．Patiently.

B．Intelligently.

C．Indifferently.

D．Vividly.

How did Einstein explain Relativity to young students？

A．Patiently.

B．Intelligently.

C．Indifferently.

D．Vividly.

How did Einstein explain Relativity to young students？

A．Patiently.

B．Intelligently.

C．Indifferently.

D．Vividly.

Which statement about Newton and Einstein is NOT true？

A．They both committed to the study of space and time and put forward their own theories.

B．Einstein's theory of relativity preceded the theories about the black holes.

C．Newton believed that the laws of motion are different for objects on Earth and in space.

D．Einstein's theory of relativity proved that some of the Newton's beliefs were wrong.

Einstein's theory of relativity is so abstruse that very few people can appreciate it.

A．understand

B．enjoy

C．raise the value of

D．be thankful for

Einstein's (relativity) theory is the (only one) (what) can explain such (phenomena).

A．relativity

B．only one

C．what

D．phenomena