原水经H型交换器交换后，出水中含有和进水中（）相应的酸类。
A.阳离子
B.阴离子
C.氢离子
D.氢氧根离子
参考答案：B
第四部分:
第一节: 根据首字母或汉语提示，写出完整的单词拼写,答在题卷上（5分）
66. It is c______________ of you to call on me from time to time.
67. The book is i__________ for beginners.
68. Sam was very ___________ (后悔的) for his actions.
69. The people there are fighting to gain their f_________ from foreign control
70. A lot of funny jokes are e_______ and can make us relaxed.
当病人神志消失，诊断心跳停止的指标是（）
A.脉搏扪不清
B.大动脉无搏动
C.呼吸停止
D.瞳孔散大
E.血压测不到
