皮皮学，免费搜题
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搜题
【多选题】
获取生产企业的信息来源主要途径有A.
查阅国内外采购指南
B.
参加国内外产品展销会
C.
利用国内外各种商联会
D.
利用商务网站进行搜索
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】当系统中纯滞后时间τ占有一定分量时，则对于采样周期T的选取，如下哪个是合理的。
A.
取 T ≈τ
B.
取 T ≈τ／ 2
C.
取 T ≈τ／ 5
D.
取 T ≈τ／ 10
【单选题】He stays ___ till eleven o’clock every morning. (2002--17)
A.
in bed
B.
in a bed
C.
on bed
D.
on the bed
【单选题】He _____ still here till now when he was born in the city. [ ]
A.
stayed
B.
stays
C.
was
D.
was like
【单选题】Your suggestion that he ________ with us till next week is good.
A.
stay
B.
stays
C.
shall stay
D.
will stay
【简答题】Listen to the recording again and complete the blanks below to show Sandra and Jack's daily activities. Sandra is student of the University of (1) __________. She shars a (2) __________ in the city. E...
【简答题】常见的客户开发方法有哪些?
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