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【单选题】
关于 CPU,下面说法正确的是( )。q18A.
CPU 能直接与内存交换数据
B.
CPU 能直接与硬盘交换数据
C.
CPU 主要由控制器和存储器构成
D.
CPU 主要用于逻辑运算功能
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【单选题】听力原文：W: Elizabeth Martin speaking. M: Dr. Martin, my name is Mark Johnson. My roommate Benjamin John is in your art history class, Art History 502. W: Yes. M: Well, he's sick and won't be in your clas...
A.
Find out about a course.
B.
See an adviser.
C.
Drop off a paper.
D.
Go to a meeting.
【简答题】选用适当的句子完成对话。 ( 答案请用大写的 A-E) A. Yes,I suppose I should have done so. B. OK.Take care and don’t eat any more fish. C. Why weren’t you here at the meeting? D . That’s all right. E. We thought you might h...
【简答题】At 10 years old, Flynn Mc Garry became sick of the meals his mother cooked for him. So the Los Angeles native took matters into his own hands and started his own dinners. One of his specialties...
【单选题】下列说法不准确的是
A.
发绀是指血液中还原血红蛋白增多，使皮肤、黏膜呈青紫色
B.
当毛细血管血液的还原血红蛋白量超过50g/L时，皮肤、黏膜出现发绀
C.
产生发绀的原因是由于血液中氧合血红蛋白增加
D.
广义的发绀还包括少数由于异常血红蛋白衍化物所致皮肤黏膜青紫现象
E.
CO中毒不出现发绀
【单选题】John is sick, so _________________.
A.
he will be able to come tonight
B.
he won’t be able to come tonight
【简答题】A. Why didn’t you phone ? B. OK. Take care and don’teat any more fish C. Why weren’t you here atthe meeting ? D. That’s all right E. We thought you might havehad an accident or forgotten the day or s...
【简答题】Complete the following sentences according to the signal words. 1. I didn’t want to go to the wedding. Besides, _____________. A. I didn’t have anything good to wear B. It was my best friend’s wedding...
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