已知两直线2x-y+1=0与3x+ay=0平行,则a=______.
∵直线2x-y+1=0与3x+ay=0平行,
∴2=-3a
-解得:a=-32
故答案为:-32
在LCP协商中,当接收Configure-Request报文的一端不能识别所有的发送端发送过来的配置参数选项时,此时接收端将会向对端回一个()报文。
A.Code-Reject报文
B.Config-Ack报文
C.Config-Nak报文
D.Config-Reject报文
句型转换(每空一词)。
1. Martin has a sore back.(改为一般疑问句)
________Martin ________ a sore back?
2. There's something wrong with his ear.(对画线部分提问)
________the matter ________ his ear?
3. You should eat some Chinese food.(改为否定句)
You ________ eat ________Chinese food.
4. We should practice speaking English every day.(对画线部分提问)
________ ________you ________ ________every day?
5. Playing soccer with friends is very exciting.(改为同义句)
________is very exciting ________ play soccer with friends.