铁矿石水分测定试验规定恒定温度为（）。 A.>105-110℃ B、120-150℃C 发布时间：2020-04-14 05:12 │ 来源：www.tikuol.com 题型：单项选择题 问题： 铁矿石水分测定试验规定恒定温度为（）。A.>105-110℃B、120-150℃C、150-170℃D、170-180℃
题型：单项选择题 完形填空。 "How can I learn English well?" "This is a __1__ many students may ask. In my opinion, the most effective (有效的) __2__ is to learn lessons by heart. If you can recite the text and write it out, you will learn it pretty well. And if you can tell __3__ your own words about __4__ the lesson says, you are a very successful learner indeed. Your English will be quite perfect. This is a difficult task. However, if you try to learn by heart only part of each lesson, you'll find it not so hard __5__ you might have thought. Learn this way, and you will __6__ fast progress. Of course, writing is also necessary. It helps you a lot on your way to __7__ in English studies. It's equally (同样地) important to feel the language. You should laugh at Englsih jokes and be __8__ at bad news. When using English, try to __9__ your mother tongue (母语). __10__ helping you, your own language gets in your way. So, never try to learn English through putting every word into Chinese.( )1. A. problem ( )2. A. time ( )3. A. with ( )4. A. which ( )5. A. than ( )6. A. do ( )7. A. success ( )8. A. happy ( )9. A. leave ( )10. A. Instead ofB. puzzle B. way B. by B. what B. like B. make B. challengeB. happilyB. forget B. InsteadC. questionC. road C. of C. how C. so C. learn C. difference C. sad C. rememberC. BesidesD. challenge D. place D. in D. when D. as D. develop D. importance D. sadly D. realize D. Except for 查看答案
题型：单项选择题 根据《期货公司执行股指期货投资者适当性制度管理规则（试行）》，期货公司会员单位应当建立并有效执行（）制度，以明确相关期货从业者的责任。A．风险规避B．证券经纪业务管理C．期货经纪业务管理D．客户开发责任追究 查看答案
题型：单项选择题 实验室用浓盐酸（溶质质量分数为37%密度为1.19g/cm3）配制110g质量分数为10%的稀盐酸，其操作步骤是：（1）_________：需量取浓盐酸_________mL（精确到整数）；（2）_________：用规格为_________mL的量筒（从50mL和100mL中选用）量取_________mL浓盐酸倒入烧杯里； （3）_________：用量筒量取_________mL水倒入盛有浓盐酸的烧杯里，边加边用________搅拌，以便混合均匀． 查看答案