There were many ________ there.[ ]
A. backpacks
B. backpack
C. a backpack
答案：A
-I hope to see you _____ next month.
-Bye.[ ]
A. a day
B. on the day
C. some day
D. some days
一般大型船舶在尾系泊时，船首应用交角约为（）的八字锚形式固定。
A.10°
B.20°
C.30°
D.40°
