单纯性肥胖与以下哪种因素无关?()
A.父母亲肥胖
B.高热量饮食
C.运动量减少
D.应用胰岛素
E.饮酒
参考答案:D
149. Do not start a book unless you can see from the first few pages that it is ______ you can easily read and understand.
A.that
B.one
C.the one
D.a one
在TCP协议中,建立连接需要经过______阶段,终止连接需要经过______阶段。
A.直接握手,2次握手 B.2次握手,4次握手C.3次握手,4次握手 D.4次握手,2次握手