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【简答题】
在铰链四杆机构中,相对静止的构件称为 __________,不与机架相连的构件称为__________。
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反馈参考答案：
举一反三
【简答题】用 condition, state和 situation填空。 ①They set down strict___________ for letting us use their information ②The meeting put us in a difficult___________ . ③The house is in a dirty_____________.
【单选题】I am sure that I can ______ him into letting us stay in the hotel for the night.
A.
talk
B.
speak
C.
tell
D.
say
【单选题】The little boy with an overcoat felt grateful _____ us for our letting him ______ the game. [ ]
A.
for; join in
B.
to; to join in
C.
with; join
D.
to; join in
【简答题】I am sure I can ________ him into letting us stay in the hotel for the night. A) speak B) say C) talk D) tell
【简答题】图示为东汉错银铜牛灯,1980年出土于江苏邗江县甘泉2号东汉墓。 铜牛灯由灯座、灯盏、烟管三部分组装而成,灯座是一俯首站立、双角上耸的黄牛。牛腹中空,背负圆形灯盘,灯盘一侧设置扁平把手,便于转动灯盘,盘上饰两片可以灵活转动的灯罩,其中一片刻镂空菱形斜方格形纹,起到散热、挡风和调光的作用。当灯火点燃时,所产生的烟尘通过烟管导入灯座腹腔中的清水被溶解,从而确保室内空气的清新。这是 汉代青铜灯具中实用、...
【单选题】They are letting us use their computers, and _____ we are giving them the results of our research. [ ]
A.
in turn
B.
in theory
C.
in return
D.
in general
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