A. 3
B. 4
C. 5
D. 不清楚
● 在Linux操作系统中，存放用户帐号加密口令的文件是 （34） 。（34）A. /etc/sam B. /etc/shadow C. /etc/group D. /etc/security
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Students can do _____ activities, such as, silent reading, doing written exercises, writing something down individually after brainstorming in a group, or individual speech preparations, etc.A.pair work B.whole-class work C.individual D.group work
EPQ测查的人格维度有()个。单选A. 3 B. 4 C. 5 D. 6
BPRS的评定等级是（）级。单选A. 3 B. 4 C. 5 D. 7
A. 3 B. 4 C. 5 D. 6
2011年，钢材的日均产量最高的月份是（ ）月。 A. 3 B. 4 C. 5 D. 6
1, 9，7, 4, 8, 5, ( ) ，11。A. 3 B. 4 C. 5 D. 6
