皮皮学,免费搜题
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【单选题】
反应 2SO 2 (g) + O 2 (g) = 2SO 3 (g) 达平衡时,保持体积不变,加入惰性气体 He ,使总压增加一倍,则( )
A.
平衡向右移动
B.
平衡不发生移动
C.
平衡向左移动
D.
无法判断
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【单选题】In the author's opinion, the absorption of immigrants into American society is ______ .
A.
rewarding
B.
successful
C.
fruitless
D.
harmful
【判断题】市场竞争很激烈时,投标报价策略可以选择竞争型策略。()判断对错
A.
正确
B.
错误
【单选题】发动机火花塞的电极间隙一般在( )mm范围内。
A.
0.35~0.45
B.
0.7~0.9
C.
0.9~1.0
D.
1.1~1.5
【单选题】【图片】该机构中()存在局部自由度。
A.
B处
B.
D处
C.
I处
D.
F处
【简答题】使学校从工具型组织走向()组织,是课程领导背景下学校角色的必然选择。
【单选题】In the last paragraph, the author tells us the section on jokes and cartoons is ______.
A.
read only by children
B.
of no value
C.
not helpful
D.
read by many
【多选题】计算图示齿轮-连杆组合机构的自由度。当构件H为原动件时,该机构的运动是否确定?若存在复合铰链、局部自由度和虚约束,应指明。试指出下列哪些分析结果是正确的( )【图片】
A.
机构中无局部自由度和虚约束
B.
机构中无复合铰链,则 F = 3×5 – 2×5– 1 = 4
C.
机构中有复合铰链,则 F = 3×5 – 2×6– 1 = 2
D.
该机构的运动确定
E.
该机构的运动不确定
【判断题】精简版的商业计划书很注重逻辑性。()
A.
正确
B.
错误
【单选题】The author implies that while speaking R.DLaing ________.
A.
was both too casual and authentic
B.
was acting like a performer
C.
was keeping a good balance
D.
was aware of his audience
【单选题】In the first paragraph, the author implies that writers' reactions to the development of railroads were ______.
A.
highly enthusiastic
B.
both positive and negative
C.
unchanging
D.
disinterested
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