【单选题】If you want to get a high score you must first______.
A.
gain the skills of using your guns
B.
wipe out a score tanks
C.
hunt a number of enemy's saucers
D.
kill some supertanks or missiles
【单选题】________, please try your best to solve the problem in time.
A.
Ought you get into trouble
B.
Must you get into trouble
C.
Can you get into trouble
D.
Should you get into trouble
【单选题】若视觉观察未发现来船或其目标,但雷达显示有回波,则应()。
【多选题】绿色包装材料除了具有一般包装材料的保护性、加工操作性、外观装饰性的性质外,还具有()的特点。
【单选题】If you meet troubles in your life, you must try to _________the troubles.
【单选题】You must _____ your studies and get ready for the college entrance examinations.
【单选题】食品和饮料工业生产上常用的“巴氏灭菌法是一种”( )方法
【判断题】一幅RGB图像中如果没有蓝色,就没有蓝色通道;而 蓝色通道亮度越高(越白),则表示图像蓝色值越多。其他通道亦如此。