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【判断题】
X6132型万能铣床工作台变换进给速度时,当蘑菇形手柄向前拉至极端位置且在反向推回之前借推动行程开关SQ6,瞬时接通接触器:KM3,则进给电动机作瞬时转动,使齿轮容易啮合。( )
A.
正确
B.
错误
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【单选题】I worked very hard for a year in this company ___ I am looking for a promotion.
A.
but
B.
so
C.
although
【单选题】What is the cause of her death?
A.
Joy because her husband died.
B.
D espair because her joy was killed.
C.
joy because her husband came back.
D.
S adness over her husband ’ s death.
【单选题】I am looking for a gift for my mother.
A.
我在寻找妈妈。
B.
我在给妈妈寻找一个礼物。
C.
妈妈给了我一份礼物。
【单选题】慢性阻塞性肺疾病患者加强腹式呼吸的原因是
A.
有利于痰液排出
B.
增加肺泡张力
C.
使呼吸阻力减低,增加肺泡通气量
D.
D 借助腹肌进行呼吸
【简答题】The little girl was ________ by the death of her dog since her affection for the pet had been real and deep. A) grieved B) suppressed C) oppressed D) sustained
【单选题】关于 PPP 协议下列说法正确的是 ( ) 。
A.
PPP 协议是物理层协议
B.
PPP 协议是在 HDLC 协议的基础上发展起来的
C.
PPP 协议支持的物理层可以是同步或异步电路
D.
PPP 主要由两类协议组成:链路控制协议簇 (LCP) 和网络安全方面的验证协议簇 (PAP 和 CHAP)
【单选题】关于PPP协议下列说法正确的是()
A.
PPP协议是物理层协议
B.
PPP协议是在HDLC协议的基础上发展起来的
C.
PPP协议支持的物理层可以是同步电路或异步电路。
D.
PPP主要由两类协议组成:链路控制协议族(LCP)和网络安全方面的验证协议族(PAP和CHAP)
【单选题】Good morning. I am looking for a tie for my blue shirt.
A.
Have a nice day.
B.
I think you need a dark blue tie. How about this one?
C.
Yes, we have plenty of shirts here.
D.
Here is your change.
【简答题】I am looking for a .
【简答题】I am looking for a jacket for my son.
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