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【单选题】
分析用水的率应小于()A.
1.0µS/cm;
B.
0.1µS/cm;
C.
5.0µS/cm;
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【简答题】What type of indorsement is the following? 'Pay John on his delivery of documents of title to Hong Kong Bank. Signed: Wang'
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A.
match
B.
suit
C.
fit
D.
agree
【单选题】The professor (type) his own letters while his secretary is ill.
A.
types
B.
type
C.
is typing
D.
typing
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