问题
单项选择题
先天性心脏病病因的环境因素中最主要的是（）
A.孕母早期服药史
B.接触大量放射线
C.孕妇患代谢紊乱性疾病
D.宫内感染
E.妊娠早期饮酒、吸食毒品
答案
参考答案：D
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先天性心脏病病因的环境因素中最主要的是（）
A.孕母早期服药史
B.接触大量放射线
C.孕妇患代谢紊乱性疾病
D.宫内感染
E.妊娠早期饮酒、吸食毒品
参考答案：D
| 下面是吉林-长春之间的快车时刻表，请根据表内信息选择答案。 | ||||||||||
| ||||||||||
| 1. Here are of trains going between the two cities every day. | ||||||||||
[ ] | ||||||||||
| A. five pairs B. ten pairs C. fifteen | ||||||||||
| 2. If you want to get the earliest train to Changchun, you should take train. | ||||||||||
[ ] | ||||||||||
| A. K958 B. K656 C. K676 | ||||||||||
| 3. The first train from Changchun arrives in Jilin at . | ||||||||||
[ ] | ||||||||||
| A. 07:34 B. 08:48 C. 05:29 | ||||||||||
| 4. You are in Changchun now. Which train do you have to catch if you want to stay in Changchun as long as possible? | ||||||||||
[ ] | ||||||||||
| A. K957 B. K655 C. K675 | ||||||||||
| 5. It's 10 to 2 p.m.. If you are going to send a bag to the Changchun Railway Station and get the return train in only a few minutes, when will you arrive in Jilin? | ||||||||||
[ ] | ||||||||||
| A. 16:25 B. 18:35 C. 18:45 |