少分枝,触之稍有粗糙感,节间长2~6cm,鳞叶裂片2(稀3),髓部近圆形()
A.草麻黄
B.中麻黄
C.木贼麻黄
D.生麻黄
E.蜜麻黄
参考答案:A
You can only be sure of ____ you have at present; you cannot be sure of something ____ you might get in the future.
A.that, what
B.what, /
C.what, which
D./ , that
使用Socket进行网络通信一般有4个步骤______,打开I/O流连接到Socket上,根据不同的协议对Socket进行读写操作,______。