由结核杆菌引起的感染为：
A．血栓性浅静脉炎B．血栓性深静脉炎C．游走性浅静脉炎D．血栓闭塞性脉管炎E．动脉硬化闭塞症
参考答案：B
The teacher couldn't make himself _____ attention to because the students were so noisy. [ ]
A. to pay
B. to be paid
C. paid
D. pay
胃溃疡的疼痛节律为
A．餐前30分钟疼痛进餐缓解B．餐后即痛持续2小时缓解C．餐后半小时开始痛至下餐前缓解D．餐后2小时痛进餐缓解E．夜间痛
