错误使用B超诊断仪的是
A.冬天要保暖
B.夏天要降温
C.机房要有遮光设备
D.可在机房内烧开水
E.机房要防尘
参考答案:D
解析:机房内要保持干燥,温度也不能太高。
Jack,you’re so lazy!This job hours ago.
A.should finish
B.must have finished
C.ought to have been finished
D.was about to finish
高钾血症时,血清钾高于
A.5mmol/LB.4.5mmol/LC.4mmol/LD.5.5mmol/LE.3.5mmol/L