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【单选题】
取葡萄糖1.0g，加90%.乙醇30ml，置加热回流10min，溶液应澄清。该法检查的杂质是A.
亚硫酸盐
B.
可溶性淀粉
C.
糊精
D.
蛋白质
E.
砷盐
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举一反三
【简答题】心理学成为独立的学科是在( )年
【单选题】Sometimes I wonder how I can make friends with a man who has little in ______ with me. [ ]
A.
ordinary
B.
common
C.
same
D.
similar
【单选题】听力原文：W: I wish Mary would call when she knows she'll be late. This is the third time we have had to wait for her. M: I agree, but she does have to drive through very heavy traffic to get here. Q: How ...
A.
He is annoyed but understands.
B.
He is not happy.
C.
He knows Mary must drive a long way.
D.
He is afraid of the woman he is speaking to.
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