背手上铐时,负责警戒的民警位于嫌疑人的()。
A.左前侧
B.右前侧
C.左后侧
D.右后侧
参考答案:C
The two tables are of the same shape but the one made of steel costs more than ________ made of wood.
A.that
B.those
C.one
D.it
一般桥台和挡土墙墙后填土土压力按()考虑。
A.静土压力
B.主动土压力
C.被动土压力
D.不考虑土压力