小胡与小刘因为琐事发生纠纷，那么他们是否要经过人民调解委员会调解，首先取决于()。A

While she is a lovely girl, she    be extremely difficult to work with.

A．may

B．must

C．should

D．can

治疗气虚便秘的最佳选方是

A．四磨饮
B．五磨饮
C．黄芪汤
D．黄芪建中汤
E．六磨汤

下列各选项中，属于民法上的孳息的是( )。

A．埋藏在土地中的古代花瓶
B．果树上已成熟的果实
C．动物腹中的胎儿
D．股东从股份公司中获得的分红

Originally introduced by Netscape Communications, (1) are a general mechanism which HTFP Server side applications, such as CGI (2) , can use to both store and retrieve information on the HTTP (3) side of the connection. Basically, Cookies can be used to compensate for the (4) nature of HTTP. The addition of a simple, persistent, client-side state significantly extends the capabilities of WWW-based (5) .

（4）是（）

A.fixed

B.flexible

C.stable

D.stateless

在下列形位公差名称组中，（）组全是位置公差。

A.圆度、圆柱度、平面度、垂直度

B.圆度、圆柱度、直线度、平面度

C.面轮廓度、圆柱度、下线度、平面度

D.倾斜度、同轴度、对称度、位置度