男，78岁，因感肢体僵硬、无力入院。检查时可见患者双上肢震颤，休息时明显，运动时减轻，上肢伸肌和屈肌的肌张力均增高，做被动运动时各个方向的阻力～致。

根据上述检查结果提示患者存在（）。

A.意向性震颤

B.舞蹈样运动

C.静止性震颤

D.共济失调

E.手足徐动

When amphibians first appeared on Earth millions of years ago, the amount of ultraviolet radiation penetrating Earth’s atmosphere was much greater than it is today. Therefore, current dramatic decreases in amphibian populations cannot be the result of recent increases in ultraviolet radiation penetrating Earth’s atmosphere.
Which of the following is an assumption on which the argument depends

A．The eggs of modern amphibians are not significantly more vulnerable to ultraviolet radiation than the eggs of the first amphibians were.

B．Modem amphibians are not as likely as the first amphibians were to live in habitats that shield them from ultraviolet radiation.

C．Populations of modern amphibians are not able to adapt to changing levels of radiation as readily as populations of early amphibians were.

D．The skin of amphibians is generally more sensitive to ultraviolet radiation than the skin of other animals is.

E．(E) The skin of amphibians is less sensitive to ultraviolet radiation than to other types of radiation.