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【多选题】
样品总件数为n,如按包装件数来取样,其原则为(A.
3
B.
n≤3时,随机取样
C.
.n≥300时,随机取样
D.
n≥300时,按+1取样
E.
n≤3时,逐件取样
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if
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【单选题】It seems that it's going to rain. If I _____ you, I ______ take an umbrella with me. [ ]
A.
am, will
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was; would
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A.
will rain; will rain
B.
rain; will rain
C.
will rain; rains
D.
rains; rains
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