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【单选题】
下列化合物能与硝酸银氨溶液反应的产生白色沉淀是A.
1- 丁烯
B.
2- 丁烯
C.
1- 丁炔
D.
2- 丁炔
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【简答题】Ironing a shirt is easy to learn. Just follow the steps in this short guide (指南), and you’ll learn how to iron your shirt properly with the help of the video. The most important thing is this: don’t t...
【单选题】— Excuse me, Sir, is the swimming pool open all day? — ____. Only from 6:00 pal to 10:00 pm. [ ]
A.
That's right.
B.
Yes, of course
C.
Sorry, I am not sure
D.
Sorry, I'm afraid not
【单选题】When you pack, what should you do?
A.
to include an iron and board
B.
to take the perfume instead of the scented lotions
C.
to have a first-aid kit
D.
to bring the entire guidebook with you
【单选题】患者女、42岁。反复咳嗽、咳痰12年。诊断为慢性支气管炎。该疾病的诊断标准是在排除其他心肺疾病后
A.
咳嗽、咳痰持续半年以上
B.
咳嗽、咳痰伴喘息持续半年以上
C.
咳嗽、咳痰伴喘息反复发作连续2年或2年以上
D.
咳嗽、咳痰伴喘息反复发怍每年至少3个月、连续2年或2年以上
E.
咳嗽、咳痰伴喘息反复发作每年至少3个月、连续3年或3年以上
【简答题】在TCP/IP协议中,TCP是指(),IP是指网际协议
【单选题】When you pack, what should you do?
A.
to bring the entire guidebook with you
B.
to take the perfume instead of the scented lotions
C.
to include an iron and board
D.
to have a first-aid kit
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