美国一女患者，患有严重的脑综合征、慢性压疮（褥疮）、心脏病、糖尿病等，对环境没有感觉

按要求完成下面各句。每空一词。

1. Martin used to give his mother a lot of trouble. (改为否定句)

    Martin _____ _____ to give his mother a lot of trouble.

2. To keep healthy, more and more people prefer walking to driving. (同义句转换)

    To keep healthy, more and more people would walk _____ drive.

3. She learns English by listening to tapes. (对划线部分提问)

    _____ she learn English ?

4. His parents didn't catch his words at once. (改为被动语态)

    His words _____ _____ by his parents at once.

5. Tom asked me n:ot to stand here. (把间接引语改为直接引语)

    "_____ stand here." Tom _____ to me.

设有6个结点的无向图，该图至少应有( )条边才能确保是一个连通图。

A．5
B．6
C．7
D．8

下列能不同地程度反映膨胀土性质的指标组合中，（）指标被《膨胀土地区建筑技术规范》列为膨胀土的特性指标。（）

A.自由膨胀率、塑限、膨胀率、收缩率

B.自由膨胀率、膨胀率、膨胀力、收缩率

C.自由膨胀率、膨胀率、膨胀力、收缩系数

D.自由膨胀率、塑限、膨胀力、收缩系数

影响战略规划集中程度的因素有（）。

A.实施的时机

B.领导的作风

C.系统中的地位

D.系统中的关系

E.环境的性质

使用拐杖步行时的四点步是（）。

A、左拐－右足－右拐－左足

B、左拐－左足－右拐－右足

C、右拐－右足－左足－左拐

D、左拐－右足－右足－左拐

E、以上都不对