成语“秦晋之好”中的秦、晋为我国哪两个省区的简称( ) A.山西和甘肃 B.陕西 发布时间:2017-06-06 22:26 │ 来源:www.tikuol.com 题型:选择题 问题: 成语“秦晋之好”中的秦、晋为我国哪两个省区的简称( )A.山西和甘肃B.陕西和山西C.四川和甘肃D.贵州和云南
题型:选择题 完形填空。 There are four seasons (季节) in China. Spring comes first. In __1__ parts of China, spring is usually very __2__. It usually comes in February __3__ March. Summer comes __4__ spring. Usually it's very __5__ in summer. And the hottest month is July. Autumn __6__ from August and lasts (持续) for three__7__. The weather can be cool in autumn. Winter is the __8__ season of the year. It lasts from __9__ to January, and it's very cold. You can go skating. It's an interesting __10__. So it's best to come to Chinain spring or autumn.( )1. A. many ( )2. A. long ( )3. A. to ( )4. A. before ( )5. A. warm ( )6. A. comes ( )7. A. days ( )8. A. first ( )9. A. November ( )10. A. place B. little B. small B. but B. after B. hot B. starts B. months B. third B. SeptemberB. game C. lot C. short C. or C. betweenC. cold C. goes C. years C. last C. June C. sport 查看答案
题型:选择题 化学课上,同学们利用下列实验探究碱的化学性质(1)甲实验中加入酚酞试液的目的是 ;(2)乙实验利用控制变量法进行了对比,排除了水对实验的干扰.若观察到U形管左端的液面 (填“升高”或“降低”),则证明溶液中的氢氧化钠能与二氧化碳反应,其反应的化学方程式为 ;(3)丙实验观察到的现象是 ;(4)实验结束后,同学们将废液倒入同一只洁净废液缸中,发现废液浑浊并显红色,将废液进行过滤,对废液的成分做了进一步探究:【实验探究】同学们取一定量过滤后的废液,向废液中逐滴加入稀盐酸,根据反应现象绘制了如丁图所示的示意图【得出结论】分析图象数据,得出废液中(除酚酞外)一定含有的溶质是 查看答案
题型:选择题 男性,70岁,慢性咳嗽、咳痰20余年,每年持续3~4个月,近2~3年出现活动后气短,有时双下肢水肿。今日晨起突感左上胸针刺样疼痛,与呼吸有关,继之出现呼吸困难、大汗,不能平卧,来院就诊体检重点应是()A.肺部啰音B.心脏听诊C.胸膜摩擦音D.肺下界位置E.胸部叩诊音及呼吸音双侧对比 查看答案