关于麻痹性肠梗阻,说法不正确的是()
A.腹胀显著
B.呕吐较重
C.肠鸣音减弱或消失
D.大肠和小肠均充气扩张
E.腹痛为持续性胀痛
参考答案:B
Although they wanted to keep it quiet, news of the job loses ________ very quickly.
A.got by
B.got out
C.got over
D.got off
△ABC中,AB=5,AC=3,∠A=x,该三角形BC边上的中线长是x的函数y=f(x),则当x在(0,π)中变化时,函数f(x)的取值的范围是()。
A.(0,5)
B.(1,4)
C.(3,4)
D.(2,5)