为减小基牙负担，桥体设计时应考虑
A．减小颊舌径的宽度
B．降低桥体面宽度
C．采用金属与树脂材料
D．设计成卫生桥
E．尽量扩大邻间隙
参考答案：A
The lake is _____ beautiful in spring and summer because of the pleasant weather in both seasons.
A．partly
B．merely
C．nearly
D．equally
长江上游和中游的分界线是（ ）
A．宜宾
B．重庆
C．宜昌
D．武汉
