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【简答题】
用适当的介词填空。 1. He climbed up to the top of a large rock, ______ where he got a good view. 2. The painting ______ which I looked was painted by Vincent Van Gogh. 3. The pen ______ which she wrote that book can now be seen in a museum. 4. The little creature (生物) ______ which scientists are interested is known as ET. 5. The film ______ which I fell asleep was very boring. 6. The gun ______ which he was shot was never found. 7. Please give me the reason ______ which you were late this time. 8. He remembers the day ______ which his father died. He was only ten years old at that time. 9. The girl ______whom you talked at the meeting is a college student. 10. The people ______ whom the man spoke weren't listening.
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参考答案:
举一反三
【判断题】二力构件所受的两个力大小相等方向相反且一定共线。
A.
正确
B.
错误
【单选题】胚泡植入在哪里才会形成前置胎盘
A.
子宫前壁
B.
子宫后壁
C.
子宫底部
D.
近子宫颈内口
E.
子宫颈
【判断题】两力共线,方向相反
A.
正确
B.
错误
【简答题】力偶是由大小相等、方向相反、作用线平行且不共线的两个力组成的力系。
【判断题】大小相等,方向相反,不共线的两个力称为力偶。
A.
正确
B.
错误
【单选题】根据结构形式不同,内燃叉车可分为三种,下列哪种叉车不是内燃叉车?
A.
内燃平衡重式叉车
B.
集装箱叉车
C.
内燃侧面式叉车
D.
电动叉车
【判断题】两个力大小相等,方向相反,作用线共线,则这两个力满足二力平衡公理。
A.
正确
B.
错误
【多选题】根据结构形式不同,内燃叉车可分为三种,下列哪种叉车内燃叉车?
A.
内燃平衡重式叉车
B.
集装箱叉车
C.
内燃侧面式叉车
D.
电动叉车
【多选题】力偶是指( )的两个力。
A.
大小相等
B.
方向相反
C.
作用线相互平行
D.
作用线相互垂直
E.
作用线共线
【多选题】根据结构形式不同,内燃叉车可分为三种,下列哪种叉车内燃叉车?
A.
内燃平衡重式叉车
B.
集装箱叉车
C.
内燃侧面式叉车
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