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举一反三
【多选题】8/6R—AH型介质泵中，“8”代表（），“6”代表（）。
A.
“8”为介质泵吸入口的直径
B.
“8”为介质泵排出口的直径
C.
“6”为介质泵排出口直径
D.
“6”为介质泵吸入口直径
【单选题】Photos that you might have found down the back of your sofa are now big business! In 2005, the American artist Richard Prince’s photograph of a photograph, Untitled (Cowboy), was sold for $1,248,000. ...
A.
is fond of collecting family life photographs
B.
found a complaining note under his car wiper
C.
is working for several self-published magazines
D.
wondered at the artistic nature of found photographs