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问题 单项选择题

患儿11个月，生后反复患肺炎，2天前开始发热、咳嗽、气促、烦躁不安。体检：口唇发绀，呼吸48次／分，心率198次／分，心音低钝，胸骨左缘3、4肋间可闻及Ⅲ级收缩期杂音，双肺中、小水泡音，肝肋下3．0cm，双足背轻度水肿。本例可能的诊断

A．室间隔缺损

B．室间隔缺损合并肺炎

C．室间隔缺损合并肺炎和心力衰竭

D．室间隔缺损合并亚急性细菌性心内膜炎

E．室间隔缺损合并心力衰竭

答案

参考答案：C

填空题

如图所示是火警报警器的部分电路示意图。其中R2为用半导体热敏材料（其阻值随温度的升高而迅速减小）制成的传感器，电流表A为值班室的显示器，a、b之间接报警器。当传感器R2所处位置出现火情时，显示器A的电流I_____________，报警器a、b两端的电压U_____________（填“变大”、“变小”或“不变”）。

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补全对话，情景问答
情景交际。从方框中选出适当的句子补全对话，其中有两项是多余的。

A: Hi, Jack. You were not at school yesterday. 1.________
B: Oh, I had a headache and I had to ask for a sick leave.
A: Sorry to hear that. 2.________
B: Yes, my mother took me to the hospital. The doctor looked me over and said I had caught a cold.
A: 3.________
B: Yes, a little. The doctor told me to take these pills three times a day and drink more water.
A: 4.________
B: Yes, much better.
A: 5.________
B: I will. Thank you.

A. You're welcome.
B. What's going on?
C. What was the matter?
D. Are you feeling better now?
E. Was it serious?
F. Take more exercise and keep healthy.
G. Did you see the doctor?
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