有效进行教学必须遵循的基本要求称______。

用所给单词的适当形式填空，使句子意思完整，正确。

小题1:I’m very grateful for Mr. Johnson’s help with my job, so I will thank him __________ (personal).

小题2:I must __________ (apology) for not letting you know the plan ahead of time.

小题3:The __________ (perform) of the street artist was so great that it attracted the attention of all passers-by.

小题4:He is looking forward to __________ (admire) the classic music by Beethoven at the concert.

小题5:_________ (confident) is the first step to success.   

小题6:Don’t worry. The problem has been __________ (solve).

小题7:Then the question __________ (arise) at the meeting, but no one knew how to answer it.

他汀类降脂药主要降低（）.

A.LDL-C

B.TC

C.LDL-C和TC

D.TG

E.HDL-C

为测定物质A的校正因子，将4.500g物质A（纯度为98.5%）和1.500g的参比物质苯（纯度也是98.5%）混合均匀后进样，根据谱图测得两峰面积为284.0cm²和71.00cm²。试求物质A的相对质量校正因子f’_m.

在数据库系统中，用户所见的数据模式为______。

A．概念模式

B．外模式

C．内模式

D．物理模式

深化全员信息化练兵，提高官兵科技素质，警官计算机应用“五会”达标率为100%。下列属于“五会”内容的有：（）

A.会打字会上网

B.会搜索会录入信息

C.会简单编程会浏览信息

D.会网上办公会查询