高压旋塞阀属于高压（）手动截止阀。
A、低温
B、常温
C、中温
D、高温
参考答案：B
一月份0℃等温线大体与（ ）等降水量线一致，此线以北耕地以旱田为主，以南以水田为主．
A．200毫米
B．400毫米
C．800毫米
D．1600毫米
—Isn't that Ann's husband over there?
—No, it ______ him. I'm sure he doesn't wear glasses. [ ]
A. is
B. isn't
C. are
D. wasn't
