题目内容

______ is worth doing at all is worth doing well.

A. That
B. Whatever
C. Whichever
D. However

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I was supposed to be a mathematics major, but I actually took ______ courses in physics, if not more.

A. so many
B. as many
C. a good many
D. such many

Heat does not travel by convection in a solid, because the solid does not move, ______.

A. so does a liquid
B. so a liquid does
C. so is a liquid
D. as does a liquid

He explained everything over again ______ anyone should misunderstand her.

A. since
B. when
C. lest
D. as if

______ convincing an argument is, it needs support of evidence.

A. Whatever
B. However
C. Although
D. Even if