【单选题】 The ship's generator broke down, and the pumps had to be operated ______ instead of mechanically.
A.artificially
B.automatically
C.manually
D.synthetically
A.artificially
B.automatically
C.manually
D.synthetically
【单选题】 Professor Black often reminds us to ______ ourselves of every chance to improve our English.
A.notify
B.avail
C.inform
D.assure
A.notify
B.avail
C.inform
D.assure
【单选题】 I don' t like playing piano, for I felt ______ to do what I was unwilling to do myself.
A.hindered
B.obligated
C.constrained
D.conspired
A.hindered
B.obligated
C.constrained
D.conspired
【单选题】 Mr. Johnson has not decided whether he will_____ the branch company set up in the small town.
A.hand in
B.put on
C.take over
D.lead to
A.hand in
B.put on
C.take over
D.lead to
【单选题】 The citing of dangerous effects of pesticides on laboratory animals in paragraph 3 is used to suggest that ______.
A.scientists are also concerned with the effects of pesticides on animals
B.cancer is the worst effect of the pesticides
C.most or all of the dangerous effects of pesticides are now known
D.the chemicals may also cause these effects in humans
A.scientists are also concerned with the effects of pesticides on animals
B.cancer is the worst effect of the pesticides
C.most or all of the dangerous effects of pesticides are now known
D.the chemicals may also cause these effects in humans
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