皮皮学，免费搜题
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【单选题】
Choose the best answer to the following question. His explanation has ________ this mystery and helped us to understand better.A.
surrendered
B.
torn
C.
surveyed
D.
clarified
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皮皮学刷刷变学霸
举一反三
【单选题】Though______is a long way from here, we ' do our best to reach there in time.
A.
there
B.
it
C.
its
D.
itself
【单选题】Though is a long way from here, we'll do our best to reach there in time.
A.
there
B.
it
C.
its
D.
itself
【简答题】在我国较具代表性的办公软件有3个,分别是微软公司的()、金山公司的()和IBM旗下Lotus公司的()。