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【单选题】
下列关于动物运动和行为的叙述,错误的是A.
动物的运动有利于动物寻觅食物、躲避敌害、争夺栖息地和繁殖后代
B.
躯体运动产生的过程是神经传来的兴奋→骨骼肌收缩→牵引骨绕关节活动
C.
学习行为是在先天性行为的基础上，由生活经验和学习获得的行为
D.
“探究菜青虫的取食行为”可用野外采集的幼虫和新鲜白菜叶作为实验材料
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【简答题】计算计的软件系统通常分成（）软件和（）软件。
【简答题】计算机的软件系统通常分成()软件和()软件
【简答题】If you use your mobile phone as a watch, be careful that you do not look like taking text messages while speaking with others. Because frequent checking messages show that you are________
【简答题】n. 下级, 低劣, 低人一等,
【单选题】听力原文：I tell you you'll be playing with fire if you go alone into that neighborhood at night. It's a place where almost anything can happen to you if you don't watch out. What does the speaker say abou...
A.
One should be very careful when entering into that dangerous neighborhood.
B.
That neighborhood is a mess with many construction works underway.
C.
Almost everything can be bought within that neighborhood.
D.
That neighborhood caught a fire one night recently.
【简答题】计算机的软件系统通常分成( 1 )软件和( 2 )软件
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