皮皮学，免费搜题
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【单选题】
双回路液压制动系统中任何一回路失效,此时( )。A.
主缸不能工作
B.
踏板行程减少
C.
踏板行程不变
D.
制动效能降低
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】If I they were on sale online, I wouldn’t have bought the travelling bags in this store.
A.
know
B.
knew
C.
had known
D.
have known
【多选题】按照皮亚杰的阶段理论，有关婴儿的动作感知和思维关系描述正确的是
A.
婴儿的动作体现出她内心的是怎么思维的
B.
婴儿的思维跟动作没有直接联系
C.
婴儿的定向反射行为不是一种思维
D.
婴儿的动作是漫无目的的，所以他没有自主的思维
E.
婴儿主要靠动作来表达他的想法
【简答题】少尿或无尿的病因可分为哪三类?每类的病因是?
【单选题】If I they were on sale online, I wouldn’t have bought the traveling bags in this store.
A.
know
B.
knew
C.
had known
D.
have known
【单选题】If I they were on sale online, I wouldn’t have bought the traveling bags in the store.
A.
know
B.
knew
C.
had known
D.
have known
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