()是进行清洁生产审核的第一步。
A、预审核
B、审核
C、实施方案的确定
D、审核准备
参考答案:D
正常人一般U波的振幅是同导联T波振幅的()。
A.5%~10%
B.5%~20%
C.10%~20%
D.5%~25%
E.10%~25%
Much ______ to be done.
A.is remained
B.remains
C.has been remained
D.is remaining.