新充好的电池,放置时间不长,容量就下降很多或充电时比正常电池时间要长,放电时端电压下 发布时间:2020-05-07 02:35 │ 来源:www.tikuol.com 题型:单项选择题 问题: 新充好的电池,放置时间不长,容量就下降很多或充电时比正常电池时间要长,放电时端电压下降很快,可能原因就是()。A.极板短路B.自放电过大C.极板弯曲D.电池反极
题型:单项选择题 完形填空。 For your next vacation why not 1 visiting Paris? Paris is the capital of 2 and is one of 3 cities in Europe. It doesn't have any beaches 4 mountains, but there 5 still. many things to do there. For example, it has some fantastic sights, including the Eiffel Tower and Notre Dame Cathedral. 6 around Paris by taxi can 7 a lot of money, but it's usually convenient 8 the underground train to most 9 In general, though, France is quite an expensive place. One thing 10 is not expensive in France, however, is the wine. ( )1. A. consider ( )2. A. England ( )3. A. lively ( )4. A. and ( )5. A. is ( )6. A. Traveling( )7. A. spend ( )8. A. to take ( )9. A. place ( )10. A. who B. to considerB. French B. liveliest B. or B. have B. Travel B. pay B. by B. countries B. that C. considering C. France C. the liveliestC. with C. are C. Travels C. cost C. taking C. places C. where 查看答案
题型:单项选择题 二十五岁初产妇,妊娠26周,但是下腹膨隆不明显,宫底高度在脐耻之间,尚未自觉有胎动。否认腹痛病史,否认 * * 流血史。本例首先考虑的诊断为()A.死胎B.胎儿窘迫C.胎儿生长受限D.胎儿畸形E.羊水过少 查看答案