大型柱骨架的预绑安装,吊装时怎样做才保险安全?
参考答案:焊上吊环,或捆上钢丝绳。
TC在抗感染中主要抵御的细菌是()
A.布氏杆菌
B.肺炎球菌
C.破伤风杆菌
D.乙型链球菌
E.金黄色葡萄球菌
---I haven’t got the reference book yet, but I’ll have a test on the subject next month.
---Don’t worry. You ______ have it by Tuesday.
A.could
B.shall
C.must
D.may