吊运大块或整体模板时,竖向吊运不少于()吊点。
A.1个
B.2个
C.4个
D.6个
参考答案:B
长期使用广谱抗生素和磺胺类药物应该注意补充()
A.维生素A
B.维生素B1
C.维生素B2
D.维生素C
E.维生素K
Your shoes are worn out, you should get them _____, or go to buy a new pair. [ ]
A. to repair
B. repairs
C. repaired
D. will be repaired