导游服务与其它旅游服务相比,无疑居于()地位。
A.次要
B.主导
C.中心
D.协调
参考答案:C
It was still _____ range of my gun, _____ I didn't want to shoot at it any longer. [ ]
A. out of; but
B. beyond; however
C. within; but
D. on; so
地榆的功效是()。
A.凉血止血
B.收敛止血
C.化瘀止血
D.温经止血
E.补虚止血