员工在非试用期因个人原因离职,员工应提前()天书面提出。
A.7
B.14
C.15
D.30
参考答案:D
DNA复制不需要的酶是
A.DNA聚合酶
B.DNA连接酶
C.解螺旋酶
D.DNA拓扑异构酶
E.限制性核酸内切酶
Your L/C calls ______ shipment to be made in June/July.
A.on
B.in
C.for
D.at