静脉注射氨茶碱速度过快，可能会出现（） A.呼吸减慢 B.心律失常、血压下降

根据句意和首字母或汉语提示写出句中所缺单词，每空一词。

1. Zhijin Cave is known as the most beautiful underground  _______ (宫殿) in the world.  

2. Susan usually has  some pieces of b_______  and a bottle of milk for breakfast.       

3. In English the first name is the g_______   name.                                     

4. Spring is the best time for p_______  trees.                                          

5. — Excuse me. Are you f_______  now?                                                  

   — Sorry, I'm very busy.                                                              

6. It's ten  _______  (分钟) walk.                                                   

7. He  _______  (使用) a lift to go up and down every day.                            

8. Food must be  _______  (保存) in cool places in summer.                        

9. We often listen to our teacher _______  (认真) in class.                          

10. With the d_______  of computer science, more and more work will be done by computer.

消化性溃疡穿孔典型的症状和体征是（）。

A.突发性上腹部剧烈疼痛

B.多伴有呕血或便血

C.面色苍白，四肢冰凉可有休克表现

D.腹肌紧张呈板状腹

E.有一度好转，后有阵发性加重

在彩色电视机中，中频放大器的AGC控制范围一般要达到（）。

A．20dB

B．40dB

C．60dB

D．80dB

人感染肺吸虫是通过

A．吃进肺吸虫卵
B．生吃或半生吃含肺吸虫活毛蚴的淡水螺
C．肺吸虫尾蚴钻入人体皮肤
D．生吃或半生吃含肺吸虫活囊蚴的淡水甲壳动物
E．生吃或半生吃含有肺吸虫活胞蚴的淡水螺

影响工程项目质量决定性的环节是（）。

A.设备质量

B.现场工程质量

C.监理

D.设计