管阻力的模型实验,原型与模型都用同一种油,几何比尺,模型流量中心线流速1m/s,原型中心线流速为()m/s。
A.2
B.1.5
C.1
D.0.5
参考答案:D
口腔白斑出现()
A.黏膜纤维条索损害
B.黏膜白色斑块损害
C.黏膜白色网状、树枝状损害
D.黏膜红色斑块损害
E.黏膜大疱损害
We are reconsidering those terms () might be adverse to the interest of our principals.
A. what
B. that
C. when
D. where