用数字式万用表测量高电压或大电流时，可以拨动量程开关，方便操作。
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He talks （) he were drunk.
A.even though
B.so that
C.provided that
D.as if
（), a minor illness can lead to a total loss of eyesight.
A.If leaving it untreated
B.If not treating it
C.If left untreated
D.If it does not leave treated
商业银行中间业务有（)。
A. 代理工资发放
B. 开具信用证
C. 基金托管
D. 证券投资
They called at （).
A.Mark’s, the doctor’s clinic
B.Mark, the doctor’s clinic
C.Mark, the doctor’clinic
D.Mark’s, the doctor clinic
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