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【单选题】
English is a language that many people around the world _______not speak perfectly but _________at least understand．A.
may，can
B.
would，might
C.
can，must
D.
should，can
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反馈参考答案：
举一反三
【单选题】模型线性假设不包括
A.
固定成本不变假设
B.
变动成本与业务量呈完全线性关系假设
C.
销售收入与销售数量呈完全线性关系假设
D.
销售收入与销售数量呈不完全线性关系假设
【简答题】吸附法提取发酵产物的优缺点、吸附剂具备条件、吸附剂的种类分别是什么？
【简答题】吸附法提取发酵产物的优缺点、吸附剂具备条件、吸附剂的种类。
【简答题】______, the experiment will be successful. A) If carefully doing B) If did carefully C) If carefully done D) If doing carefully
【单选题】She is _____. She writes most _____ in our class. [ ]
A.
careful, careful
B.
carefully, carefully
C.
carefully, careful
D.
careful, carefully
【单选题】Of all the students in our class. Betty writes _____. [ ]
A.
very carefully
B.
more carefully
C.
most carefully
D.
the most careful
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