主页
学科
搜索
账户
常见问题
当前学科:己内酰胺装置操作工(初级)
题目:
单选
某饱和溶液溶解度为38.5克,其溶液质量为()克。
A . A、100
B . B、138.5
C . C、61.5
D . D、161.5
答案:
<查看本题扣1积分>
查看答案
答案不对?请尝试站内搜索
推荐知识点:
政府主导型发展战略是我国旅游产业健康、快速发展的重要基础。旅游产业政策应该( )。
散光眼依成因分为()。
什么叫水的真色和表色?测色度如何预处理?
社会保险由()共同筹资
测定皮质类激素含量可采用的方法为()
由他人的判断所反映的自我概念,是()。
在D5000系统中,对tomcat做性能调整,通常需要关注哪些配置文件()
诱发DIC最常见的病因为()
实际逻辑电路中,信号经过同一电路中的不同路径所产生的时延一般来说是相同的
Write down the numbers of the topic sentences in the following passages.①People who talk and sing to plants have no mental problems at all, according to an agricultural expert. ②“In fact, singing and talking to plants makes them grow better,” says Dr Braymar. ③The reason is quite simple. ④When we sing or talk to plants, we exhale(呼出) CO2 which plants need to survive (continue to live)and grow better. ⑤Plants absorb (take in) CO2 through their pores(小孔) during the sunlight hours and produce oxygen which people to survive. ⑥Singing and talking have good effect on plants, however, only during the daytime. ⑦Singing or talking at bedtime will not help plants to grow better or grow faster.