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【单选题】
干燥失重测定法中,取供试品,在规定条件下干燥至恒重,所谓恒重是指()。A.
连续两次干燥后的质量差异在0.3 mg以下
B.
第二次干燥后的质量比前-次的少 0.4 mg以下
C.
连续两次干燥后的质量差异在0.5 mg以下
D.
干燥前后的质量差异在0.3 mg以下
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举一反三
【单选题】I saw Jane dancing at Mary ’s birthday party and on that _____ she was really excellent.
A.
condition
B.
occasion
C.
position
D.
situation
【单选题】听力原文：W: Jane will be pleased with Bill's promotion. M: I heard that she wanted the job herself. What does the man imply?
A.
Jane will certainly be glad to hear about Bill's promotion.
B.
Jane has lost her job.
C.
Jane probably won't feel pleased with Bill's promotion.
D.
Jane should have got the promotion.
【单选题】---- I have taken someone else’s T-shirt by mistake. Is it Jane’s? ---- It _______ be hers. She seldom wears red.
A.
can’t
B.
mustn’t
C.
won’t
D.
needn’t
【简答题】Jane was lucky that she was just s_______( 轻微 )hurt in the accident.
【简答题】影响外来物质在消化道吸收的因素有哪些？
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