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【单选题】
压力润滑用于负荷大、转速高的摩擦表面如( )A.
活塞环与缸壁
B.
主轴颈与主轴颈
C.
连杆小头衬套与活塞销
D.
凸轮与气门挺柱
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举一反三
【简答题】This week Faith Lapidus and Doug Johnson will tell you about Chuck Berry．Chuck Berry，born on October 18，1926，is often called the father of rock and roll．He is one of the most popular and influential p...
【单选题】What did Chuck and Fred do?(Chuck和Fred做了什么?)
A.
Chuck and Fred went for a jog.
B.
Chuck and Fred went to chop a log
C.
Chuck and Fred had a chat.
D.
Chuck and Fred sat on the mat.
【单选题】以下关于用户组的描述，不正确的是（）。
A.
要删除一个用户的私有组，必须先删除该用户账号
B.
可以将用户添加到指定的组，也可以从该组中移除出去
C.
管理员可以进行用户账号的创建、设置、修改、删除等操作
D.
添加用户时对该用户指定的主组和附加组都必须是系统中已存在的组
【单选题】Chuck learns that we need friends to _____ happiness and sorrow, and that it is important to have someone to care about. [ ]
A.
share
B.
scare
C.
spare
D.
care
【单选题】Chuck as little sense of what is socially appropriate. For example, he went to his sister’swedding in running shoes.
A.
illegal
B.
fun
C.
proper
D.
mistaken
【单选题】appropriate Chuck has little sense of what is socially appropriate. For example, he went to his sister’s wedding in running shoes.
A.
illegal
B.
fun
C.
proper
【简答题】C Complete the conversation with the appropriate tense Chuck: Hello, is that Miranda? Miranda: Yes, this is Miranda speaking. Chuck: Hi, Miranda. It’s Chuck here. I had an amazing time with you yeste...
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