单词拼写。

1. People need to pay more a_____ to their children.

2. In kindergartens the teachers are very p_____.

3. Don't eat too many c_____. It's bad for your teeth.

4. The dog always c_____ a lot of trouble.

5. Can the boy deal with the problem h_____?

并殖吸虫病病原治疗的首选药是

A．吡喹酮

B．左旋咪唑

C．噻嘧啶

D．甲苯咪唑

E．阿苯达唑