患者对疾病的心理反应中，产生怀疑的主要原因是（） A.缺乏责任 B.缺乏信仰 C.缺

阅读理解.

      Mr. Gregory Gale is one of the few people in England who are 100 years old. On the day of his

 birthday, he played a game of tennis and went for a long walk. A few days later a radio reporter came

 to his house and asked him if he had any "secrets of long life". This is what Mr. Gale said, "No, I don't

 know any secrets like that, but there are a few simple rules of good life. I've always kept them all my life.

 The first is this: Don't listen to those fools who tell you to give up all the pleasures of life! The second is

 to enjoy all the pleasures of life in moderation (节制). For example, I've always smoked a few good

 cigars every day. Not many, mind you! Only two or three! I've always also drunk a little good wine

 with my meals, perhaps two or three glasses. The third rule is to take a little exercise every day. I've

 taken a little and on Saturdays I've played a little tennis or golf."

1. Which of the following isn't true?

A. Mr. Gale is still young.

B. Mr. Gale is 100 years old.

C. Mr. Gale is one of the oldest men in England.

D. Mr. Gale was interviewed by a radio reporter after his 100th birthday.

2. Which of the following doesn't Mr. Gale do in his life?

A. Playing.

B. Drinking.

C. Eating a lot.

D. Smoking.

3. Why is Mr. Gale able to live such a long life?

A. Because he knows some "secrets of long life".

B. Because he keeps a few simple rules of good life.

C. Because he gives up all the pleasures of life.

D. Because he enjoys all the pleasures of life without thinking of his health.

在学习了“实验：探究碰撞中的不变量”的实验后，得出了动量守恒定律，反过来我们可以利用该实验中的有关方案来验证动量守恒定律．下面是某实验小组选用水平气垫导轨、光电门的测量装置来研究两个滑块碰撞过程中系统动量的变化情况．实验仪器如图所示．

实验过程：

（1）调节气垫导轨水平，并使光电计时器系统正常工作．

（2）在滑块1上装上挡光片并测出其长度L．

（3）在滑块2的碰撞端面粘上橡皮泥（或双面胶纸）．

（4）用天平测出滑块1和滑块2的质量m₁、m₂．

（5）把滑块1和滑块2放在气垫导轨上，让滑块2处于静止状态（v₂=0），用滑块1以初速度v₁与之碰撞（这时光电计时器系统自动计算时间），撞后两者粘在一起，分别记下滑块1的挡光片碰前通过光电门的遮光时间t₁和碰后通过光电门的遮光时间t₂．

（6）先根据以上所测数据计算滑块1碰撞前的速度，其表达式为v₁=______，及碰后两者的共同速度，其表达式为v=______；再计算两滑块碰撞前后的动量，并比较两滑块碰撞前后的动量的矢量和．

根据实验数据完成表格内容：（表中计算结果保留三位有效数字）

m₁=0.324kg    m₂=0.181kg    L=1.00×10^-3m

次 数	滑块1		滑块2		碰前系统动量kgms-1		碰后系统动量kgms-1
	v1/ms-1	v/ms-1	v2/ms-1	v/ms-1	m1v1	m2v2	（m1+m2）v
1	0.290	0.184	0	0.184	______	0	______
2	0.426	0.269	0	0.269	______	0	______
实验结论：______

（7）若要证明上述碰撞是非弹性碰撞，那么还应满足的表达式为______ （用上面所测物理量的符号即m₁、m₂、t₁、t₂、L表示）．

美国证监会规定基金公司当中独立董事的比例必须达到( )，而且要求董事会 * * 也要由独立董事担任。

A．25%
B．40%
C．50%
D．75%

求

下边①至④图均表示植物细胞在一定时间内吸收K+与某些条件之间的关系，纵坐标表示吸收的速率，横坐标表示某个条件，假定其他条件均为理想状态，那么①至④图中横坐标代表的条件依次是（）

A.光照强度、温度、载体数量、氧气浓度

B.氧气浓度、温度、光照强度、载体数量

C.温度、氧气浓度、光照强度、溶液中K+浓液

D.氧气浓度、光照强度、溶液中K+浓度、蒸腾作用强度