油位计的上部形成真空,产生()。
参考答案:假油位
—Have you got any idea for the summer vacation?
—I don’t mind where we go______there’s sun, sea and beach.
A.as long as
B.as if
C.now that
D.in order that
五行中"土"的特性是()
A.润下
B.稼穑
C.从革
D.曲直
E.炎上