题目内容

3、用标准法进行水泥标准稠度用水量检测时,试杆沉人净浆后距底板的距离应在( )的范围内。

A. 4 ±1 mm
B. 5 ±lmm
C.6 ±lmm
D.7 ±lmm

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4、现行规程规定,采用维 仪测定水泥标准稠度用水量,以试杆距底板的距离为()作为水泥净浆达到标准稠度的判定标准。

A.3mm±1mm
B.4mm±1mm
C.5mm±1mm
D.6mm ±1mm

5、初凝时间的测定,当试件沉至距离地板___时,为水泥的初凝状态。

A.4mm±1mm
B.5mm±1mm
C.6mm±1mm
D.8mm±1mm

Shanghai, with a history dating back to the third century BC, is one of the four ________ directly under the Central Government of China.

The buildings in The Bund are harmonious in colour and style, thus gaining the name of "_______".

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