吊顶纤维板可用钉子固定,钉长为( )。
A.10~20mm
B.20~30mm
C.15~20mm
D.10~30mm
参考答案:B
Li Mei lives in a small town. She never _________ the train to big cities. [ ]
A. by
B. walks
C. take
D. takes
从甲地(70°S,80°E)到乙地(70°S,150°E),若不考虑地形因素,最近的走法是()
A.一直向正东方向走
B.先向东南,再向东,最后向东北走
C.先向东北,再向东,最后向东南走
D.先向西南,再向西,最后西北走