问题
选择题
下列各项不是节肢动物共同特点的是 [ ]
A．体表有外骨骼
B．身体由许多体节组成
C．足和触角分节
D．有翅能飞行
答案
答案：D
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下列各项不是节肢动物共同特点的是 [ ]
A．体表有外骨骼
B．身体由许多体节组成
C．足和触角分节
D．有翅能飞行
答案：D
In America, the school day usually starts at 9a.m. and finishes at about 4 p.m. The school subjects different from ours. In China, we always _____ Chinese, math, English, P.E. and so on. But in America , students have more _____ , such as cooking and driving lessons. Their life isn’t just _____ study . They have _____ things to do than the Chinese students do . There are many clubs in American schools, too. If the students are _____ in sports , they can join different sports clubs . American students also have art clubs ,language clubs and some _____ clubs. From 2:30 p.m. to 4 p.m. , they do _____ things in different clubs. Maybe you think English is very popular in the world, so American students don’t need to learn any other language _____ that’s not true. American kids from the age of seven ____ learn a foreign language. For example ,they learn French or Chinese.
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