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【单选题】
Which statement was NOT mentioned about viewing an eclipse?A.
Sunglasses block out only a limited amount of the sun's ultraviolet rays that can damage the eye.
B.
Sunglasses can only filter harmful rays during total solar eclipses at their greatest magnitude.
C.
Sunglasses tend to cause the center of the eye to enlarge allowing in more intense light.
D.
Sunglasses should be used when any part of the sun is visible.
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【简答题】wash ________ spend ________ make ________ study ________ have ________ sit _________ run ______ carry ________ lie ___________ stay _________
【单选题】在进行车轮的静强度校核时,最大轮压Pmax 是取以下载荷情况( )的最大值。
A.
仅考虑载荷情况 II （有风工作，不考虑动载效应）
B.
仅考虑载荷情况 III （非工作情况）
C.
同时考虑载荷情况 I 、 II 、 III 中最不利状态和位置（考虑动载效应）
D.
同时考虑载荷情况 II 、 III 中最不利状态和位置（考虑动载效应）
【单选题】游客食物中毒后,应建议其卧床休息,暂时禁食6-12小时,并()
A.
适当饮用加糖的淡盐水
B.
喝些自己喜欢的饮料
C.
为其购买藿香正气水帮助治疗
D.
适当的吃一些喜欢的食物
【简答题】A．He can't find the tickets. B．He doesn't want to sit in the front. C．lie would rather stand than sit down. D．He expects the hall to be crowded.
【简答题】将数1.500按0.2修约间隔进行修约，其修约数为（ ）。
【单选题】Dogs can earn not only to sit, lie down but also___
A.
to obey all orders given by human beings.
B.
to do anything as children.
C.
to guide his blind master to cross streets.
D.
do anything they haven't been trained.
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