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【简答题】
叉架类零件包括拨叉和( )。拨叉主要用在机床、内燃机的操纵机构上,操纵机器、调节速度。支架主要起支撑和连接的作用。
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反馈参考答案：
举一反三
【单选题】—On November 30, Paul Walker’s car _________ a tree and he died in the accident. —What a pity!
A.
crash
B.
crash down
C.
crashed into
D.
crashed through
【简答题】为保证内部网络的安全保密性，在如图1-12所示的网络拓扑图中，(6)空缺处应选用什么设备?如果将该设备放置在路由器Router和设备(2)之间，整个网络的安全级别是否会提高?请用150字以内的文字简要列出理由。
【单选题】It can be inferred from line 6～7 that Alice Walker's first impressions of Langston Hughes were derived mostly from ______.
A.
talking with his friends
B.
reading his autobiography
C.
studying his poetry
D.
meeting him
【单选题】Why is the author attracted by Hank Walker's pictures?
A.
Because they are about the Kennedy brothers.
B.
Because they are still.
C.
Because they display many objects.
D.
Because Hank Walker was a famous photographer.
【简答题】劝说过程中正反证据的使用对劝说效果有何影响?
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