使用气象雷达应该注意什么?
参考答案:
禁止在加油时或离人群和溢油处较近时使用气象雷达。
— These grapes look really beautiful.
— They _______! See the price $3.99 a pound. Very expensive, aren't they!
[ ]
A. would
B. could
C. might
D. should
简述舌下腺囊肿鉴别诊断。