下列化学用语与其含义相符的是 A.1个镁离子— Mg B.2个氧分子—O2 C.

题型:选择题

问题:

下列化学用语与其含义相符的是

A.1个镁离子— Mg

B.2个氧分子—O2

C.3个氮原子—N3

D.4个水分子—4H2O

考点:化学反应方程式的书写化学图标化学反应方程式的配平化学反应方程式的意义
题型:选择题

根据下列各句句意和空白之后的汉语提示词,在答题卡指定区域的横线上写出对应单词的正确形式,每空只写一词。

小题1:I would be __________(感激) if you could give me some advice.

小题2:I can _________(辨认出) his voice on the phone.

小题3:The _________(坚定的)look on her face shows that she will never give up.

小题4:About 200 people are _________(围困)under the ruins.

小题5:The job and the pay from the government are my _________(回报).

小题6:All the ___________(艺术家)are coming from western countries.

小题7:Her being __________(录取) to the key school made her parents happy.

小题8:___________(就我个人而言), I think our team will win the match.

小题9:I’m ___________(保护) myself from mosquitoes.

小题10:Fans showed their _________(热爱) by waiting outside for hours.

题型:选择题

指出下列句子中的通假字并释义。

略无阙处_____通_____,意思是_____

题型:选择题

在真空中传播的电磁波具有相同的 [ ]

A.波速

B.波长

C.频率

D.能量

题型:选择题

下列各项属于投标文件组成内容的有______。

A.合同条件及格式

B.报价工程量清单

C.技术标准和要求

D.项目管理机构

E.拟分包项目情况表

题型:选择题

The eastern bluebird is considered the most attractive bird native of North America by many bird-watchers.

A.native

B.native with

C.native by

D.native to

更多题库