下列属于劳动合同的约定条款内容有( )。 A．职业条款 (B B．补充保险和福利

结合上皮的更新（）

A.比牙龈表面上皮

B.与牙龈表面上皮更新速度相

C.比牙龈表面上皮快1倍

D.比牙龈表面上皮快2～3倍

E.以上都不对

Policemen think that where there is violence , drugs with damaging effects on kids are always ______ it．

A．beyond

B．before

C．behind

D．besides

It’s quite normal to___ ten percent of the cost of a building for a period of six months or so, in case faults are found in it.

A．keep up

B． keep away

C．keep off

D．keep back

弥漫大B细胞淋巴瘤化疗后受累野放疗剂量（）。

A.40～45Gy

B.20～36Gy

C.50～55Gy

D.30～35Gy

E.60Gy

音乐中最有表现力的因素是（）.

A.音色

B.和声

C.曲调（旋律）

D.节奏