问题
单项选择题
胎盘基本形成的时间约在()
A．孕4周
B．孕8周
C．孕12周
D．孕14周
E．孕18周
答案
参考答案：C
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胎盘基本形成的时间约在()
A．孕4周
B．孕8周
C．孕12周
D．孕14周
E．孕18周
参考答案：C
| 用方框内所给单词的适当形式填空 | |
bought 1 he wanted , he went into a restaurant and sat 2 at a table. When he looked round , he saw some old people 3 eyeglasses on before 4 their books , so after lunch he decided to go to a shop to buy 5 , too. He walked along the road , and soon found a 6 . The man in the shop made him 7 on a lot of glasses,but each time Tom said. "No,I can't read with these. " The man became 8 and more puzzled(困惑的). At last he said,"Excuse me,but 9 you read at all?" "No,I can't!"Tom said," 10 I can read.do you think I will come here to buy glasses?" |