巴甫洛夫指出人和其他动物都有处理（）的系统。

影响神经系统发育最重要的激素是

A．糖皮质激素

B．生长素

C．盐皮质激素

D．肾上腺素

E．甲状腺激素

有关眼睑闭合不全，错误的有

A．最常见原因为面神经麻痹

B．中度兔眼会致暴露性角膜炎

C．昏迷或深度麻醉可发生永久性兔眼

D．轻度兔眼会引起结膜充血、干燥、肥厚及过度角化

E．应针对病因进行治疗

请根据下面短文回答下列题：
Safety Rules for Bike-Riding.
1. Never ride out into a street without stopping first.
2. Watch for stop signs.
3. Look behind before turning or changing lanes (车道) .
4. Always ride on the right.
5. Never follow another rider without applying the rules.
Remember, your bicycle is a small compared with cars and trucks. It is not easily seen on crowded streets and will seldom attract attention on its own. At all times, do everything you can to make sure you are noticed.

What should a bike-rider do when he / she rides after another rider
[A] Watches for stop signs.
[B] Changes lanes.
[C] Applies the safety rules.

环形弹簧常用于：（）。

A、重型机械的缓冲装臵。

B、仪器和钟表的储能装臵。

C、各种车辆的减振装臵。

D、电接触器。