题目内容
（请给出正确答案）
[主观题]
______ books helpful to the students？
A、Is this
B、Are these
C、Are theirs
D、Are they
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题目内容
（请给出正确答案）
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
A、Is this
B、Are these
C、Are theirs
D、Are they
如果结果不匹配，请 联系老师 获取答案
更多“______ books helpful to the st…”相关的问题
A. to … for
B. to … with
C. for … with
D. for … to
A.In this sentence, the word foul means_____
B.bird
C.unpleasant
D.free
E.helpful
Have you found it helpful to take motes when talking to a customer ？ How ？
你认为在与客户交谈时做记录是否很有帮助？你是如何做的？
A.look up
B.use up
C.look at
D.depend on
A、adjusted
B、adjusting
C、adjust
D、adjustment
A、Requirements phase is the first phase of software life cycle
B、To determine requirements is easy because no coding is needed
C、There are many methods that can be helpful for requirements collecting
D、Requirements determine the success of the target system fundamentally
A.were
B.have
C.was
D.has
