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【多选题】
运动系统支持、保护和运动的功能 的基础是A.
骨骼 为支架
B.
肌肉 为动力
C.
关节为枢纽
D.
神经为支配
E.
血管来输送营养
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】i could never be so _______ without your help. 成功的
【单选题】I could never be so ___________without your help.
A.
succeed
B.
successful
C.
succeeded
D.
success
【简答题】I could never be so ______ (成功的) without your help.
【单选题】Now most Chinese families in the country have their own houses ________ [ ]
A.
to live
B.
living
C.
living in
D.
to live in
【单选题】Mr Li always ______ weekends playing ping pang with his son. [ ]
A.
spends
B.
costs
C.
takes
【简答题】Mr Li a_____ his son to play computer s once a week.
【单选题】听力原文：(A) There are many houses at the bottom of the hill. (B) Trees have lost most of their leaves. (C) Smoke is rising from the chimney. (D) Many pipes are being installed.
A.
B.
C.
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