The underlined words "stay put" means______.
A. keep silent
B. leave at once
C. put everything back and then leave
D. stay in the building
查看答案
M: To be honest, I thought that through art, I could become famous, pretty stupid idea.
Q: What can we infer from the conversation？
(14)
A. The man hasn't succeeded in painting any pictures yet.
B. The man has come to a new understanding of painting pictures.
C. The woman is good at painting pictures.
D. The woman has refused the man's application to paint pictures.
现采用四级流水线结构分别完成一条指令的取指、指令译码和取数、运算以及送回运算结果四个基本操作，每步操作时间依次为60ns，100ns，50ns和70ns。该流水线的操作周期应为(4)ns。若有一小段程序需要用20条基本指令完成(这些指令完全适合于流水线上执行)，则得到第一条指令结果需(5)ns，完成该段程序需(6)ns。
(65)
A. 50
B. 70
C. 100
D. 280
A．Because many of the boys in single parent families are raised by their mothers.B．Bec
A. Because many of the boys in single parent families are raised by their mothers.
Because many boys like the stories of women pioneers.
C. Because boys are more negative than girls.
D. Because many of the boys are from minority populations.
微信支付 
支付宝支付