典型的Charcot三联症对以下哪种疾病有诊断意义
A．急性胰腺炎
B．急性胃炎
C．急性十二指肠憩室炎
D．急性胆管炎
E．急性胆囊炎
参考答案：D
用所给词的适当形式填空。
1. Would you mind not _____(speak) so loud? I'm doing my homework.
2. Don't _____(drop) litter in the street.
3. Could you please _____(pick) up the book for me?
4. The teacher ordered us _____(listen) to her carefully.
5. We have no problem _____(finish) the work on time.
修理精密仪器的工人往往会在眼睛上嵌一个带镜头的筒，以便于更仔细地观察零件，这里的镜头应该是一个[ ]
A．凹面镜
B．凸面镜
C．凹透镜
D．凸透镜
