皮皮学，免费搜题
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搜题
【多选题】
汽车底盘竣工验收时,进行检验的项目有( )。A.
驱动桥装配验收
B.
转向桥调整验收
C.
车身总成竣工验收
D.
滑行性能
E.
发动机总成竣工验收
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
【简答题】PSAs are often run___1___ (免费), and are intended to educate people about health, safety, or any other issue which affects ___2____(公共福利).
【单选题】PSAs are often run _____ free, and are ______ to educate people about health, safety, or any other problem that affects public welfare.
A.
for, mean
B.
for, meant
C.
of, to mean
D.
in, meaning
【单选题】PSAs are often run for free, _____ to educate people about health, safety, or any other problem that affects public welfare. [ ]
A.
meaning
B.
meant
C.
to mean
D.
having meant
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