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【简答题】
 Fill in the blanks with the exact words you've just heard. Unable to 1) __________ in many activities, my father still tried to 2) __________ in some way. When a 3) __________ baseball team found itself without a manager, he kept it going. He was a 4)__________ baseball fan and often took me to Ebbets Field to see the Brooklyn Dodgers play. He liked to go to dances and parties, where he could have a good time just sitting and watching. On one 5) __________ occasion a fight broke out at a beach party, with everyone 6) __________ and 7) __________. He wasn't content to sit and watch, but he couldn't stand 8)__________ on the soft sand. In 9) __________ he began to shout, “I'll fight anyone who will sit down with me! I'll fight anyone who will sit down with me! ” Nobody did. But the next day people kidded him by saying it was the first time any 10)__________ was urged to take a dive even before the bout began.
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【单选题】Which of the following can help you get into the habit of reality testing?
A.
Videotaping your life.
B.
Bringing a memo pad.
C.
Setting an alarm clock.
D.
Regulating your hobbies.
【简答题】PLC 采用扫描工作方式,一个扫描周期分为 、 、 、 、 五个阶段。
【判断题】PLC 采用循环周期扫描工作方式。( )
A.
正确
B.
错误
【简答题】关于磁盘使用知识,下面哪一个说法是正确的?( ) A)软盘的数据存储容量远较硬盘小 B)软盘可以是好几张磁盘合成一个磁盘组 C)硬盘存储密度较软盘大 D)读取硬盘数据所需的时间较软盘多
【单选题】下列哪一项不是订货点法的基本假设?
A.
对各种物料的需求是相互独立的
B.
物料需求是不连续发生的
C.
库存消耗之后,应被重新填满
D.
“何时订货”是一个大问题
【单选题】一网店的某一商品,净利润为3.5,销售收入为35元,这件商品的净利润利率为 ( )
A.
10%
B.
20%
C.
30%
D.
40%
【多选题】关于磁盘使用知识,下面哪些说法是正确的()
A.
软盘的数据存储容量远较硬盘小
B.
软盘可以是好几张磁盘合成一个磁盘组
C.
硬盘存储密度较软盘大
D.
读取硬盘数据所需的时间较软盘多
【判断题】PLC采用扫描工作方式,扫描周期的长短决定了PLC的工作速度。( )
A.
正确
B.
错误
【单选题】投资者想要卖掉手中的股票,首先要经过的是?
A.
证券公司
B.
中央证券结算交易中心
C.
证券公司的会员
D.
中间人
【简答题】____PLC 采用扫描工作方式,扫描周期的长短决定了 PLC 的工作速度。
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