钻芯法测定混凝土强度,取芯数量同批构件不少于( )个。
A.2B.3C.4D.6
参考答案:B
重度高血压患者可出现的分裂是()
A.S2反常分裂
B.S2生理分裂
C.S2通常分裂
D.S2固定分裂
E.S1分裂
The workers are _______ because their boss hasn't paid them for months. [ ]
A. angry
B. happy
C. satisfied