“闪点”的定义是什么？
参考答案：
“闪点”是指该液体的蒸汽与空气形成可然混合物的最低温度。
30. — Have you ever been to Australia?
— Never, but I have been looking forward _______ such a chance for further study there.
A．to give
B．to be given
C．to giving
D．to being given
应诊断为
A．庆大霉素过敏反应
B．庆大霉素肾中毒，导致急性肾衰
C．双输导管结石梗阻
D．前列腺肥大
E．原发病导致失水
