某项工作根据网络计划检查结果总时差为一3天,则该工作( )。
A.影响工期3天
B.不影响工期
C.影响工作间逻辑关系
D.不影响资源供应
参考答案:A
Jenny was sad over the loss of the photos she shot in Canada, _________ this was a memory she especially treasured.
A.if
B.when
C.as
D.where
滤过除菌法使用的微孔滤膜的孔径是()
A.0.1μm
B.0.22μm
C.0.45μm
D.0.8μm
E.1.0μm