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【单选题】
Which of the following statements is not in conformity with the authors idea?
A.
The international scholarly pecking order has been overturned.
B.
Impediments to global mobility can be sometimes protectionist.
C.
Educational protectionism is a big mistake like trade protectionism.
D.
Academic competition may create a threat to American competitiveness.
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【单选题】某钻孔灌注砼桩25根,桩径Φ900mm,设计桩长28m,入岩(较软岩)1.5m,自然地面标高-0.6m,桩顶标高-2.60m,C30砼现场自拌,根据地质情况岩石孔砼充盈系数为1.1,已知管理费和利润的费率为11%和7%,请按上述条件和14计价定额的规定,确定往岩石孔中灌注混凝土的定额综合单价( )元/m3。
A.
417.92
B.
421.18
C.
458.83
D.
469.92
【单选题】给出下列化合物的偶极矩大小顺序 A. CH 3 CH 2 Cl B. CH 3 CH 2 Br C. CH 3 CH 2 CH 3 D. CH 3 CH 2 CN
A.
D>A>B>C
B.
A>B>D>C
C.
A>B>C>D
D.
B>A>D>C
【单选题】某单独招标打桩工程编制标底,设计回旋钻机钻孔灌注砼桩25根,桩径Φ900mm,设计桩长28m,入岩(较软岩)1.5m,自然地面标高-0.6m,桩顶标高-2.60m,C30砼现场自拌,根据地质情况土孔砼充盈系数为1.25,岩石孔砼充盈系数为1.1,每根桩钢筋用量为0.750t。以自身的粘土及灌入的自来水进行护壁,砌泥浆池,泥浆外运按8KM,桩头不需凿除。请按上述条件和14计价定额的规定计算该打桩工程...
A.
421.25m3
B.
445.10m3
C.
17.42m3
D.
435.56m3
【单选题】给出下列化合物的偶极矩大小顺序( )。【图片】
A.
D>A>B>C
B.
A>B>C>D
C.
B>A>D>C
D.
A>B>D>C
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【单选题】某钻孔灌注砼桩25根,桩径Φ900mm,设计桩长28m,入岩(较软岩)1.5m,自然地面标高-0.6m,桩顶标高-2.60m,C30砼现场自拌,根据地质情况土孔砼充盈系数为1.25, 已知管理费和利润的费率为11%和7%,请按上述条件和14计价定额的规定,确定往土孔中灌注混凝土的定额综合单价( )元/m3。
A.
473.46
B.
421.18
C.
458.83
D.
469.92
【单选题】某单独招标打桩工程编制标底,设计回旋钻机钻孔灌注砼桩25根,桩径Φ900mm,设计桩长28m,入岩(较软岩)1.5m,自然地面标高-0.6m,桩顶标高-2.60m,C30砼现场自拌,根据地质情况土孔砼充盈系数为1.25,岩石孔砼充盈系数为1.1,每根桩钢筋用量为0.750t。以自身的粘土及灌入的自来水进行护壁,砌泥浆池,泥浆外运按8KM,桩头不需凿除。请按上述条件和14计价定额的规定计算该打桩工程...
A.
476.89m3
B.
453.04m3
C.
23.84m3
D.
18.12m3
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