农业节水重点工程项目是指重点实施大中型灌区续建配套与节水改造项目,优先安排 ( )主产区、严重缺水地区和生态脆弱地区灌区改造。
A.核能
B.天然气
C.粮食
D.石油
参考答案:C
— What would you do if you ______ a million dollars?
— I'd give it to medical research. [ ]
A. have
B. had
C. have had
D. are having
为提高卷绕生头时挂丝的张力,正确的途径是()。
A.停导丝辊
B.停止上油
C.开大吸枪阀门
D.加大卷绕超喂