下列现象不能用质量守恒定律来解释的是[ ] A. 蜡烛燃烧时慢慢

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问题选择题

下列现象不能用质量守恒定律来解释的是[ ]

A. 蜡烛燃烧时慢慢变短

B. 湿衣服在阳光下晒干

C. 铁生锈后质量变大

D. 红磷在密闭的容器内燃烧质量不变

答案

问答题论述题

心脏外科12床，女，10岁，A型血，因胸闷、运动后嘴唇紫绀入院，在全身麻醉下实施“心内直视下室间隔缺损修补术”，术中因病情需要输注RBC1U，15分钟后患儿出现血尿，血压下降至60/40mmHg。问：

（1）患儿可能发生了何种意外？

（2）请简述处理措施？

单项选择题

Which of the following statements is closest in meaning to the passage you have just heard()

A. City Bank is actually in good operation.

B. Banking regulators are willing to comment on city group’s problems.

C. The stock’s price of City Bank remains high today.

D. Bank’s new CEO insisted City is in good operation.