茶道起源于哪个国家？（） A.中国 B.日本 C.韩国 D.印度

若煤中的杂质在煤中呈粗粒嵌布，则对煤的可浮性影响不大。

苯二氮卓类主要作用于大脑哪些部位（）

A.脑干网状结构

B.大脑皮质

C.中脑

D.大脑边缘系统

E.脊髓背角

阅读下面短文，从短文后各题所给的四个选项（A、B、C 和 D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

                                    A Heroic Driver

Larry works with Transport Drivers. Inc. One morning in 2009. Larry was  41

along 165 north after delivering to one of his    42   . suddenly, he saw a car with its bright lights on.    43    he got closer, he found 44    vehicle upside down on the road. One more look and he noticed    45    shooting out from under the    46    vehicle. Larry pulled over, set the brake and    47   the fire extinguisher (灭火器). Two good bursts from the extinguisher and the fire was put out.

The man who had his bright lights on    48    and told Larry he had    49    an emergency call. They    50    heard a woman’s voice coming from the wrecked (毁坏的) vehicle.    51   the vehicle, they saw that a woman was trying to get out of the broken window. They told her to stay    52    until the emergency personnel arrived,    53    she thought the car was going to    54   . Larry told her that he had already put out the fire and she should not move    55    she injured her neck.

Once fire and emergency people arrive, Larry and the other man    56    and let them go to work. Then, Larry asked the    57    if he was needed or    58    to go. They let him and the other man go.

One thing is    59   —Larry went above and beyond the call of duty by getting so close to the burning vehicle! His    60    most likely saved the woman’s life.

50（）

A.then

B.again

C.finally

D.even

将下列各组物质区别开来的实验方案（见括号内的方法）不合理的是（　　）

A．Na₂CO₃和NaHCO₃（采用加氯化钙溶液观察有无沉淀的方法）

B．（NH₄）₂SO₄与NH₄Cl（采用加氢氧化钠溶液并加热闻其气味的方法）

C．NaCl与KCl（采用灼烧时观察焰色的方法）

D．K₂CO₃与KNO₃（采用加稀盐酸观察有无气泡产生的方法）

患者近来尿少，粪便反复带有鲜血。查体：面部有蜘蛛痣，左肋缘下触及脾脏，腹部叩诊出现移动性浊音。应首先考虑的是

A．肾病综合征

B．右心功能不全

C．肝硬化

D．慢性肾功能不全

E．乙型肝炎