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【简答题】
FX2N系列PLC中,输入继电器用符号( )表示,输出继电器用符号( )表示、辅助继电器用符号( )表示。
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举一反三
【单选题】When the percentage of sales method is used, the estimated bad debt expenses should be adjusted by the existing balance of doubtful debt provision.
A.
正确
B.
错误
【单选题】When the post of sales manager fell ______, Dennis Bass was appointed to fill it immediately for his excellent performance in this field during the past three years.
A.
empty
B.
vacant
C.
hollow
D.
bare
【简答题】乒乓球的结合技术主要是手法和（）的结合
【单选题】Sales revenues are usually considered earned when:
A.
cash is received from credit sales
B.
an order is received
C.
goods are transferred from the seller to the buyer
D.
goods are invoiced to the customer
【简答题】偏瘫患者上肢易于发生的痉挛模式是（ ）|偏瘫患者下肢易于发生的痉挛模式是（ ）|偏瘫早期宜多做的肩关节被动活动是（ ）|偏瘫早期宜多做的前臂被动活动是（ ）A. 屈肌痉挛B. 伸肌痉挛C. 外展、外旋D. 外展、内旋E. 旋后
【简答题】乒乓球的结合技术主要是手法和（）的结合
【简答题】When the woman reporter heard the suggestion that she attend a sales training course, __________ (她气恼得双眼直冒怒火).
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