Giventwodifferentcharactersets（AandB），whichofthefollowingmustbetrueforAtobeconsideredastrictsupersetofB？（）

A. A must contain all of the characters defined in B

B. A must be Unicode

C. The encoded values in A must match the encoded values in B for all characters defined in B

D. A must be a multibyte character set

E. The encoded values in A must match the encoded values in B for all numeric and alphabetic characters in B

If x, y, and z are positive integers and x2=y2+z2, which of the following must be true?Ⅰ.x＞z Ⅱ.x=y+z Ⅲ. y2+z2 is a positive integer

A．Ⅰ only

B．Ⅱ only

C．Ⅲ only

D．Ⅰ and Ⅱ only

E．Ⅰ and Ⅲ only

Which of the following might be TRUE of the merged company?

A．It can offer more work opportunities.

B．It can produce various kinds of metals.

C．It is the biggest producer of gold and silver.

D．It will bring huge profits to the investors.

According to the author, which of the following might be true of the journalists?

A．They seek the easy way out.

B．Language is the tool of them.

C．The truth is never conveyed in their report.

D．They only want to exploit the readers.

According to tile "gene-culture coevolution" model, which of the following would be true at the end of the day?

A．All people will be right-handed.

B．All people will be left-handed.

C．There are as many right-handers as left-handers.

D．People will use both hands equally well.

Which of the following might be true according to what you hear?

A．The plane belonged to the Mexican government

B．The plane belonged to a US businessman

C．The owner of the plane was a drug smuggler.

D．It was a plane of the US police.

Which of the following sentences is INCORRECT?

A．He is a child, and must be treated as such.

B．One such a grammar book is enough.

C．I hope never to have another such experience.

D．I have never seen such a beautiful building.

In your judgement, which of the following might not be true?

A. Mrs West had just been to the market and church.

B. The mugger knew little about judo.

C. Mrs West was a single woman.

D. The mugger didn't get punished in the end.

Which of the following might be true according to C. P. Snow?

A．Humanities had a larger influence than sciences at the time.

B．Sciences and humanities needed to develop separately.

C．Scientists should be literary intellectuals at the same time.

D．Poverty and inequality could only be eliminated by sci-tech.

Which of the following is NOT true?

A．The deaf and mute use an oral form. of communication.

B．There are many forms of communication in existence today.

C．Ideas and thoughts can be transmitted by body language.

D．Verbalization is the most common form. of communication.