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【单选题】
No matter how frequently _______, the boy was always in low spirits.A.
encouraged
B.
encouraging
C.
to be encouraged
D.
was encouraged
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反馈参考答案：
举一反三
【简答题】What is the difference between PO and Marine Physics?
【单选题】The policewoman believes that Derek gave a reasonably _______ account of what had happened to the poor family during the robbery.
A.
informal
B.
potential
C.
constant
D.
accurate
【单选题】The author advises that a student should make sure ______.
A.
what qualification are most popular
B.
whether his qualification will be recognized by future employers
C.
what the expenses are to gain high quality qualification
D.
how long it will take him to gain the qualification
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