下列哪种药物兼有抑制幽门螺杆菌的作用A．甲氰咪胍 B．雷尼替丁 C．奥美拉唑 D．碳

        the goal of "Education for All", the Chinese government is making joint efforts. [ ]

 A. To achieve

B. Achieving

C. Achieve

D. Having achieved

The 2010 winter Olympic games was held in _______. [ ]

A. Oslo

B. Ottawa

C. Turin

D. Salt Lake City

解释下列句子中加粗的字词。

（1）前后十余辈____________

（2）汉亦留之以相当____________

（3）虞常生得____________

（4）天雨雪，武卧啮雪____________

（5）使牧羝，羝乳乃得归____________

（6）兄弟亲近，常愿肝脑涂地____________

砖墙每天的可砌筑高度不应超过（）

A.1.8m

B.1.4m

C.1.5m

D.1.6m

为什么氟树脂有许多独特的优良性能？