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【简答题】
有甜味的三萜类化合物为() A.甘草皂苷 B.柴胡皂苷 C.知母皂苷 D.人参皂苷-Ro E.人参皂苷-Rb
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举一反三
【简答题】According to the writer, insurance is _________. A) useful but too risky B) useful and necessary C) costly but worth buying D) cheap but not necessary
【单选题】I have to buy. [ ]
A.
useful something
B.
something useful
C.
useful anything
D.
anything useful
【单选题】He has done ______ to improve his English. [ ]
A.
something useful
B.
anything useful
C.
useful nothing
D.
useful anything
【简答题】为了使powerpoint 2010中编辑的演示文稿能在低版本的powerpoint 中打开，可以将演示文稿保存为“（）”类型演示文稿。
【单选题】一 What do you think of English ? 一 I think English is as as Chinese. A. useful B. more useful C. the most useful
A.
useful
B.
more useful
C.
the most useful
【单选题】I think Chinese is as _____ as Maths. [ ]
A.
useful
B.
more useful
C.
most useful
D.
the most useful
【单选题】I think Chinese is as _____as maths. [ ]
A.
useful
B.
more useful
C.
most useful
D.
the most useful
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