海军舰载导弹是海军装备的用以摧毁水面、（）、（）和地面目标导弹的统称。
A、水下
B、太空
C、空中
D、地下
参考答案：A, C
用单词的正确形式填空。
1. _____ (drink) milk is good for our health.
2. Do you like to eat healthy or _____ (health) food?
3. There is no _____ (different) between us.
4. Good food and exercise help us _____ (study) better.
5. My grandma looks very young because she _____ (exercise) every day.
超声检查盆腔需适度充盈膀胱，目的是：①作为透声窗；②推开肠管；③作为辨认脏器的标志；④作为解剖的参照结构；⑤有助于提高子宫位置，以便充分显露脏器（）
A.①②
B.①②③⑤
C.①②③④
D.①③④⑤
E.①②③④⑤
