皮皮学，免费搜题
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【多选题】
直通车有哪几种出价扣费的方式（ ）A.
关键词出价扣费
B.
类目出价扣费
C.
站外出价扣费
D.
活动出价扣费
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】－You mean you have the same _________. －Yes, we both like collecting stamps and taking photos
A.
interests
B.
results
C.
problems
D.
lifestyle
【单选题】There are some big trees ____ our teaching building.
A.
in the middle of
B.
in the center of
C.
in front of
D.
in the front of
【单选题】—What’s ____ your classroom building? —There are some big trees.
A.
in front
B.
in the front
C.
in front of
D.
in the front of
【单选题】—Are you firmly against any independence move by Taiwan? —Of course. That’s ________ our basic interest lies.
A.
why
B.
when
C.
where
D.
what
【简答题】求序列【图片】的Z变换，并求出对应的零极点和收敛域。
【单选题】Did you find the story___________? [ ]
A.
interesting
B.
being interested
C.
to be interested
D.
is interesting
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