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【简答题】
阅读理解。 根据下面短文内容,选择合适答案。 George liked flying a plane. Once he bought a small plane and learned how to fly it. He soon became so good that he could make his plane do all kinds of tricks(技巧). George had a friend. His name was Peter. One day George said to his friend. 'Peter,would you like to have a trip in my plane?' Peter thought. 'I've traveled in a big plane several times,but I've never been in a small one, so I'll go.' They went up, and George flew around for half an hour and did all kinds of tricks in the air. When they came down again, Peter was very glad to be back safely , and he said to his friend in a shaking voice(颤抖的声音), 'Well, George,thank you very much for these two trips in your plane. ' George was very surprised and asked, 'Two trips?' 'Yes, my first and my last.'Answered Peter. 1. Peter _____ his friend's plane. A. had to fly in B. was asked to have a trip in C. was asked to fly D. asked George to fly 2. Peter went up with George in the plane because _____ . A. he liked traveling very much B. George was good at flying his plane C. he had never traveled in a small plane D. peter could do all kinds of flying tricks 3. They were in the plane for _____ minutes. A. forty-five B. sixty C. thirty D. some 4. How many times did Peter travel in his friend's small plane? A. Once. B. Twice. C. Three times. D. Several times. 5. From the passage we know that _____ . A. Peter thanked George for the nice trip B. Peter thought it was wonderful to have such a trip C. Peter felt surprised that his friend could fly so well D. Peter was worried about his safety while George doing tricks in the sky
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A.
有效距离不超过1m,时间不少于30分钟
B.
灯亮5分钟后开始计时,照射30分钟
C.
应先将患者病室打扫干净
D.
用乙醇擦净灯管表面灰尘
E.
卧床患者应遮盖皮肤.眼睛
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A.
眼镜片后表面的面屈光力
B.
眼镜片前表面的面屈光力
C.
眼镜片前表面的曲率
D.
眼镜片前表面的曲率半径
【判断题】基弯通常指眼镜片前表面的面屈光力。
A.
正确
B.
错误
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A.
hCG是由子宫的合体滋养层细胞分泌的一种激素
B.
hCG的β亚单位氨基酸数量与序列几乎与TSH、FSH和LH的β亚单位相同
C.
hCG的α亚单位的组成有很少部分与LH相同
D.
hCG的β亚基氨基端最后的28~32个氨基酸是独特的
E.
组成hCG的两个亚基只有连接成完整的化合物才具有活性
【单选题】眼镜架的弯度是指镜圈的弧度,通常镜架的弯度是以多少镜度为基准来进行设计加工。( )
A.
3~4D
B.
4~5D
C.
1~2D
D.
6~7D
【单选题】紫外线消毒空气的有效距离是不超过
A.
2m
B.
1.5m
C.
2.5m
D.
1m
E.
3m
【多选题】泌酸腺由几种细胞组成
A.
A细胞
B.
壁细胞
C.
B细胞
D.
粘液细胞
E.
主细胞
【单选题】紫外线消毒空气的有效距离是不超过
A.
1m
B.
1.5m
C.
2m
D.
2.5m
E.
3m
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