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【单选题】
用四氯化碳把碘从海水中提取出来使用的方法叫做A.
结晶
B.
重结晶
C.
分步结晶
D.
萃取
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【单选题】I really am not qualified to ()the safety or lack of safety in drinking this water.
A.
valuate
B.
measure
C.
evaluate
D.
vaulte
【简答题】A．calculating B．supposing C．estimating D．regarding
【单选题】Regarding insurance, the ______ is for 110% of the invoice value of the goods that a manufacturer wants to export.
A.
amount
B.
cover
C.
insurance
D.
premium
【单选题】According to the factory safety rules, all accidents _____ be reported to the safety officer.
A.
may
B.
can
C.
would
D.
shall
【简答题】A．regards B．in relation C．with regard D．regarding
【单选题】The radiotelephone safety message urgently concerned with safety of a person would be prefixed by the word ()
A.
Mayday
B.
Pan
C.
Safety
D.
Interco
【简答题】[A] regarding [B] reflecting [C] revealing [D] representing
【单选题】Food Safety and Foodborne Illnesses Food safety is an increasingly important public health issue. Governments all over the world are intensifying their efforts to improve food safety. These efforts ar...
A.
to
B.
against
C.
with
D.
towards
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