1kcal能量与1kJ的换算关系是()
A.0.239
B.16.7
C.36.7
D.29.3
E.4.184
参考答案:E
解析:能量单位的换算关系。
He asked ________ for the computer.
A.did I pay how much
B.I paid how much
C.how much did I pay
D.how much I paid
滴虫 * * 炎的传染方式不正确的是()
A.公共浴池传播
B.性交传播
C.垂直传播
D.医源性感染
E.坐式便器传播