A large number of people______ present at the meeting
A. was
B. be
C. were
D. have
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砌筑砂浆制作试块,同盘砂浆只应制作一组,一组为()个。
A. 6
B. 9
C. 3
D. 1
在德育的模式中,同时涉及两种道德规范不可兼得的情境或者问题叫作__________。
砌筑砂浆试块尺寸(mm)为()。
A. 70.5×70.5×70.5
B. 100×100×100
C. 70×70×70
D. 70.7×70.7×70.7