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>> 高等教育 / 机械制图
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佳题速递：
脑动脉粥样硬化时，下列哪项不易发生?( )病理学与病理生理学 生物起源说的代表人物是（）(A) 孟禄 (B) 利托尔诺 (C) 马克思 (D) 恩格斯小学教育学 Your friends might be in Australia or maybe just down the road , but they are all just a few clicks (点击)away. Life has 1 for millions of teenagers across the world who now make friends online. 2 you use chat rooms, QQ, MSN or ICQ, you are 3 of a virtual community(虚拟社区).
"I rarely talk with my parents or grandparents, 4 I talk a lot with my old friends on QQ," said Fox's Shadow, the online nickname(网名)used by a Senior 2 girl in China. "Eighty per cent of my classmates use QQ 5 school."
QQ is the biggest messaging 6 in China. A record 4 million people used it one Saturday night in October, 7 to Tencent, the company which developed QQ.
And Fox's Shadow might well have been one of them. "I log in (登陆) on Friday nights, and Saturdays or Sundays when I feel 8 . I usually 9 about 10 hours chatting online every week,"she said. "But I rarely talk with 10 , especially boys or men."
(1)（1分）A、improvedB、becomeC、changedD、increased(2)（1分）A、WhetherB、IfC、WhenD、Unless(3)（1分）A、memberB、partC、partnerD、number(4)（1分）A、butB、while C、whenD、still(5)（1分）A、beforeB、atC、afterD、since(6)（1分）A、serviceB、productC、structure D、organization(7)（1分）A、grantingB、dependingC、considering D、according(8)（1分）A、sleepyB、tiredC、boredD、busy(9)（1分）A、takeB、costC、payD、spend(10)（1分）A、friendsB、adultsC、malesD、strangers新发展英语综合教程（二） 作业分析是作业成本计算法的核心。（ ）成本管理 7. 下列动物适合使用滴鼻点眼法进行免疫接种的是（ ）。
a.鸡b.马c.猪d.羊e.牛动物常见病防治 偏导数与全微分的关系：
A.偏导数存在不一定全微分存在
B.全微分存在偏导数一定存在
C.偏导数存在且在一定条件下，能推出全微分存在。
D.以上都对
E.高等数学（工本）
