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【单选题】
请阅读下面材料:企业在几种报纸、杂志上做广告时,在广告下面附有一张表格或条子请读者阅后剪下,分别寄回企业有关部门,企业从回收的表格中可以了解在哪种报纸杂志上刊登广告最为有效,为今后选择广告媒介和测定广告效果提出可靠资料。该材料反映的是什么收集方法?()A.
邮寄
B.
实际痕迹测量
C.
直接观察法
D.
实验法
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】_________是无线传感节点中负责计算的核心。
【单选题】Recycling is one way to protect the enviroment; reusing is _____
A.
another
B.
the other
C.
one another
D.
one
【简答题】The table shows household spending on various items as a percentage of the total in a Chinese city in 1990 and 2005. Summarise the information by selecting and reporting the main features and by makin...
【单选题】The phrase 'synergistic effect' in the last paragraph is closest in meaning to ______.
A.
mixing effect
B.
mixed function
C.
combined result
D.
cooperated effect
【多选题】Teaching activities in Cooperative Lanuage Learning enviroment involves
A.
Three-step interview
B.
Think-pair-share
C.
Solve-pair-share
D.
Round-table
E.
Numbered heads
【简答题】协同作用（synergistic effect）
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