以下列哪种物质的衰减系数为标准来计算各种组织的CT值（）。 A.空气 B.骨 C.水

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第Ⅱ卷(答案卷；非选择题 共45分)

第一节：短文填词

阅读下面短文，根据以下提示：1）汉语提示，2）首字母提示，3）语境提示，在每个空格内填入一个适当的英语单词，并将该词完整地写在右边想对应的横线上。所填单词要求意义准确，拼写正确。（共10小题；每小题1分，满分10分）　

Now people spent their holidays in different ways. In 1999, 40% of people

stayed at home in their holidays, ________(放松) themselves. In 2003,           76. _________

the rate ________(下降) to 9%. More and more people did so in 1999. People       77. _________

went to the ________(野外) to discover the real world around them. The rate 78. _________

of going to the seaside r________ nearly the same in 2003. About 30% of          79. _________

people loved sunshine and swimming so they p________ to go to the beach     80. _________

and seaside on holiday. C________ with 12% in 1999, the rate of                   81. _________

traveling abroad was ________ in 2003. 24% of people went out of                      82. _________

China so as to learn more about the world, ________ was impossible 20 years        83. _________

ago. With the development of China, people’s living has greatly i________     84. _________

and traveling around the world has become the first ________ for many         85. ________

people recently.

某同学用下列器材测量某种电池的电动势E及内阻r

器材：量程3V、有一定内阻的电压表，量程0.5A、可视为理想的电流表，滑线变阻器R，

电键K，导线。

⑴为了减小实验误差,实验时应选择图   所示的电路。

⑵实验中测出了多组(I U）数据,并绘制出了U—I图线，如图所示。请利用所画图线求出电池的电动势为    V，内阻为    Ω。（小数点后均保留二位）

血液病病人的白细胞数低于下列哪项时需进行保护性隔离()。

A．1.0×10⁹/L

B．1.5×10⁹/L

C．2.0×10⁹/L

D．2.5×10⁹/L

E．3.0×10⁹/L

创造型人才应具有的能力中，（）是多种能力之首。

A.发明创造能力

B.社交活动能力

C.获得信息情报的能力

D.演说表达能力

600mm轨距运行1T矿车时，甩车场最小竖曲线半径一般采用（）。

A.9—12m

B.12—15m

C.12—20m