我国慢性活动性胃炎最主要的病因（） A.药物 B.HP C.胆汁 D.自身免疫 E. 发布时间：2017-07-04 13:34 │ 来源：www.tikuol.com 题型：单项选择题 A1型题 问题： 我国慢性活动性胃炎最主要的病因（）A.药物B.HPC.胆汁D.自身免疫E.物理因素
题型：单项选择题 A1型题 完形填空。 There are four kinds of satellites. The first kind of satellite studies the 1 of the earth. They are used to 2 maps. They also help countries to see where they may 3 oil or gold. The second kind guides ships and planes. A ship or plane can send 4 to the satellite, and the satellite can find out where it is. The third kind studies 5 . These satellites 6 clouds and strong winds moving across the earth. They warn countries when very 7 weather is coming. They take photos of the earth from thousands of kilometers above it and 8 the photos to a weather station on the ground. The fourth kind is used for communication. Telephone calls 9 countries can be sent by these satellites. Some can carry hundreds of calls at one time. The calls are sent to the satellite,then the satellite sends them to a station in the country Which is being phoned. These satellites 10 carry television pictures. They can receive and send about eight programs at a time. How amazing! ( )1.A. chemistry ( )2.A. make ( )3.A. buy ( )4.A. a letter ( )5.A. the air ( )6.A. see ( )7.A. bad ( )8.A. send ( )9.A. in ( )10.A. too B. geography B. buy B. need B. telephone B. the weatherB. watch B. fine B. carry B. of B. either C. physics C. carry C. find C. money C. the rain C. search C. nice C. take C. between C. also D. biology D. sell D. use D. a message D. the cloud D. look D. warm D. bring D. among D. neither 查看答案
题型：单项选择题 A1型题 某化学兴趣小组讨论辨析：①漂白粉和酸雨都是混合物 ②煤和石油都是可再生能源 ③蔗糖、硫酸钡和水分别属于非电解质、强电解质和弱电解质 ④不锈钢和目前流通的硬币都是合金 ⑤硫酸、纯碱、醋酸钠和生石灰分别属于酸、碱、盐和氧化物 ⑥豆浆和雾都是胶体。上述说法正确的是A．①②④⑤B．①⑤⑥C．①③④⑥D．②③④⑤ 查看答案