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【单选题】
听力原文：M: I want to take psychology this year．But according to the requirements．I have to have taken the biology course first． W: Ask the professor if you can take them simultaneously，although maybe all he can do is say no． Q: What does the woman suggest the man do? (16)A.
Postpone his favorite course to the next semester.
B.
Ask the professor to help him choose other courses.
C.
Request permission to take the courses together.
D.
Take the course from a different professor.
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举一反三
【多选题】冷冻干燥的优点包括
A.
干燥温度低，不使蛋白质、微生物之类产生变性或失去生物活力
B.
物质中的挥发性成分和受热变性的营养成分损失很小
C.
干燥后体积、形状基本不变，复水性好
D.
真空下干燥，可减少空气对产品的不良影响
E.
产品含水量低，保存期长
【单选题】Which function(s) is(are) performed by an operating system?
A.
Process management
B.
Device drivers
C.
Memory management
D.
File system
E.
All of the above
【简答题】我国现存最早的病因证候学专著,其作者是
【判断题】The steady-state output of a transfer function system can be obtained directly from the sinusoidal transfer function—that is, the transfer function in which s is replaced by -jω, where ω is frequency.
A.
正确
B.
错误
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