皮皮学，免费搜题
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【单选题】
减少磨损的方法有很多种,其中 是错误的。
A.
选择合适的材料组合
B.
改滑动摩擦为滚动摩擦
C.
增加表面粗糙度
D.
建立压力润滑油膜
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举一反三
【单选题】当三极管的发射结正偏,集电结反偏时,此时处于( )区。
A.
截止
B.
放大
C.
饱和
D.
无法确定
查看完整题目与答案
【单选题】The 3-year-oid boy was found _____ in the bathroom. Nobody knows how and when he _____. [     ]
A.
dying, died
B.
dead, dying
C.
dead, died
D.
died, dying
查看完整题目与答案
【简答题】A 篇 "I sometimes get up at three or four in the morning and I surf the Internet." "I often check my e-mail forty times a day." "I often spend more than three hours during one time on the Interne...
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【单选题】对下面的程序描述正确的是( )。 #include V oid main( ) { int x=3,y=5; if (x=y-4)printf( “ * ” ); else printf( “ # ” ); }
A.
有语法错误，不能通过编译。
B.
输出 *
C.
可以通过编译，但是不能通过连接，因而不能运行。
D.
输出 #
查看完整题目与答案
【单选题】下列哪个行为能使OID值增加?
A.
还贷利息未交
B.
订单及时交货
C.
未及时支付费用
D.
订单被取消
查看完整题目与答案
【单选题】Jim is outside the room. Please open the door and ___________. [     ]
A.
let him in
B.
let in him
C.
let him out
D.
let out him
查看完整题目与答案
【单选题】He looks sad.  Let’s cheer him up .
A.
let him down.
B.
Make him happy
C.
make him pleasure
D.
disappoint him
查看完整题目与答案
【简答题】"I sometimes get up at three or four in the morning and I surf the Internet." "I often check my e-mail forty times a day." "I often spend more than three hours during one time on the Internet." "I spe...
查看完整题目与答案
【单选题】-oid in sigmoid is a suffix which means
A.
old
B.
resembling
C.
down
D.
blue
查看完整题目与答案
【单选题】如果三极管的发射结正偏,集电结反偏,当基极电流I B 增大时,将使三极管
A.
集电极电流Ic 减少
B.
集电极电压U CE 增大
C.
集电极电流Ic增大
D.
发射极电流I E 下降
查看完整题目与答案
相关题目：
【单选题】当三极管的发射结正偏,集电结反偏时,此时处于( )区。
A.
截止
B.
放大
C.
饱和
D.
无法确定
查看完整题目与答案
【单选题】The 3-year-oid boy was found _____ in the bathroom. Nobody knows how and when he _____. [     ]
A.
dying, died
B.
dead, dying
C.
dead, died
D.
died, dying
查看完整题目与答案
【简答题】A 篇 "I sometimes get up at three or four in the morning and I surf the Internet." "I often check my e-mail forty times a day." "I often spend more than three hours during one time on the Interne...
查看完整题目与答案
【单选题】对下面的程序描述正确的是( )。 #include V oid main( ) { int x=3,y=5; if (x=y-4)printf( “ * ” ); else printf( “ # ” ); }
A.
有语法错误，不能通过编译。
B.
输出 *
C.
可以通过编译，但是不能通过连接，因而不能运行。
D.
输出 #
查看完整题目与答案
【单选题】下列哪个行为能使OID值增加?
A.
还贷利息未交
B.
订单及时交货
C.
未及时支付费用
D.
订单被取消
查看完整题目与答案
【单选题】Jim is outside the room. Please open the door and ___________. [     ]
A.
let him in
B.
let in him
C.
let him out
D.
let out him
查看完整题目与答案
【单选题】He looks sad.  Let’s cheer him up .
A.
let him down.
B.
Make him happy
C.
make him pleasure
D.
disappoint him
查看完整题目与答案
【简答题】"I sometimes get up at three or four in the morning and I surf the Internet." "I often check my e-mail forty times a day." "I often spend more than three hours during one time on the Internet." "I spe...
查看完整题目与答案
【单选题】-oid in sigmoid is a suffix which means
A.
old
B.
resembling
C.
down
D.
blue
查看完整题目与答案
【单选题】如果三极管的发射结正偏,集电结反偏,当基极电流I B 增大时,将使三极管
A.
集电极电流Ic 减少
B.
集电极电压U CE 增大
C.
集电极电流Ic增大
D.
发射极电流I E 下降
查看完整题目与答案