问题补充:
You cannot telllooking at someone whether or not he has HIV.
A. without
B. by
C. for
D. with
答案:
A. without
(答案→)B. by
C. for
D. with
解析:考查介词辨析。句意:你不可能凭外表来判断一个人是否携带HIV病毒。by意为“通过,用……,靠……”,符合句意。
时间:2024-02-03 13:31:10
You cannot telllooking at someone whether or not he has HIV.
A. without
B. by
C. for
D. with
A. without
(答案→)B. by
C. for
D. with
解析:考查介词辨析。句意:你不可能凭外表来判断一个人是否携带HIV病毒。by意为“通过,用……,靠……”,符合句意。