图8是我国人口增长走势及预测图。读图，完成13～14题。
关于图中a．．b．．c三条曲线判断正确的是 （ ）
| A．a表示的是死亡率 | B．b表示的是出生率 |
| C．b表示的是自然增长率 | D．c表示的是自然增长率 |
根据图中曲线判断，下列说法正确的是 （ ）
| A．中国人口最高值的年份大约出现在2027年左右 |
| B．2015年前后出生率和死亡率大致相同 |
| C．2015年之后由于我国人口的基数大，死亡率开始回升 |
| D．现阶段我国人口的增长模式同大多数发展中国家一样 |
Qingdao is _______ most beautiful coastal city and I think I’ll go there for _______ second time.
| A．a;a | B．the; a | C．the; the | D．the; a |
A beach house caught fire last night, ______seven students living in it.
| A．to kill | B．killing | C．having killed | D．killed |
____the sketch of Xiao Shenyang made a _____has been known to us all.
| A．That; hit | B．What; strike | C．Why; beat | D．which; knock |
That Xiao Shenyang was elected_____model worker of May Day caused ____enthusiastic discussion in China.
| A．the; the | B．a; an | C．the; a | D．a; the |
----What do you know the _____ of are the pig influenza in humans?
---- usually similar to regular human seasonal influenza .
| A．symptoms | B．sympathy | C．symbol | D．symptom |