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【单选题】
第三篇: Giving Up Smoking A number of devices are available to help a person quit smoking. Nicotine(尼古丁) patches are small, nicotine-containing adhesive(粘着性的) discs applied to the skin. The nicotine is slowly absorbed through the skin and enters the bloodstream. Over time, the nicotine dose is reduced and eventually the desire for nicotine is eased. Nicotine gum works in a similar manner, providing small doses of nicotine when chewed. The benefits of giving up smoking include the immediate reduction of harm to the health of the smoking and easily admission to social activities and institutions that ban smoking. In a 1988 report, the U.S. Surgeon General declared cigarette smoking to be more harmful and expensive than the use of cocaine(可卡因) , alcohol, or heroin. Recent evidence supports this claim. The United States government has collected a special tax on cigarettes for several decades. The rate rose from 8 cents per pack of 20 cigarettes in 1951 to 24 cents per pack in 1993. In other developed countries, the cigarette tax rate is much higher, ranging from 50 percent in Switzerland to 85 percent in Denmark. In the United States, the first direct action to check smoking was the regulation of a warming on cigarette packages by the Federal Trade Commission. This warning took effect in 1964 and was strengthened in 1969 to read:“Warning: The Surgeon General Has Determined That Cigarette Smoking Is Dangerouis to Your Health.”In 1971 all cigarette advertising was banned from radio and television, and cities and states passed laws requiring nonsmoking sections in public places and workplaces. 第41题:Which of the following can help a person quit smoking?
A.
Using nicotine patches.
B.
Reading cigarette advertisements.
C.
Chewing ordinary gum.
D.
Participating in social activities.
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【多选题】(多选)一列简谐横波,某时刻的波形如图6甲所示,P、Q、M为该横波上的三个质点,各自的横坐标位置分别为x=6 m、x=10 m、x=15 m,从该时刻开始计时,波上M质点的振动图象如图乙所示,则下列说法正确的是( )
A.
该波波速是25 m/s,传播方向沿x轴负方向
B.
若此波遇到另一列简谐横波并发生稳定干涉现象,则该波所遇到的波的频率为2.5 Hz
C.
若该波能发生明显的衍射现象,则该波所遇到的障碍物尺寸一定比20 m大很多
D.
从该时刻起,再经过0.4 s质点Q通过的路程为4 m
E.
从该时刻起,质点Q将比质点P先回到平衡位置
【单选题】职校生小王上学途中穿过路口时遇到红灯,看到近处没有车辆便径直通过,他的这一行为是()
A.
聪明灵活之举,值得提倡
B.
节省时间之举、值得提倡
C.
不守规矩之举,不能提倡
D.
可供借鉴之举,值得提倡
【单选题】把10个苹果放进9个抽屉里,总有一个抽屉里至少放了( )个苹果。
A.
1
B.
2
C.
3
D.
4
【单选题】点 D的坐标为(10、25、20)该点对H面的距离为:( )
A.
15
B.
25
C.
20
D.
10
【单选题】某点的坐标值为(10,20,30),则该点到V面的距离为()。
A.
10
B.
20
C.
25
D.
30
【单选题】膳食中合理的能量来源比例是:脂肪在总能量中不宜超过
A.
1%
B.
20%
C.
30%
D.
35%
【判断题】社会主义的根本任务是提高人民生活水平达到共同富裕。
A.
正确
B.
错误
【单选题】膳食中合理的能量来源比例是:脂肪在总能量中不宜超过
A.
15%
B.
20%
C.
30%
D.
35%
【单选题】春季型人的肤色特点是__________。
A.
粉白,乳白色皮肤,带蓝色调的褐色皮肤,小麦色皮肤。
B.
浅象牙色,暖米色,细腻而有透明感。
C.
瓷器般的象牙色皮肤,深桔色、暗驼色或黄橙色。
D.
青白或略带橄榄色,带青色的黄褐色,冷调的看不到红晕的肤色。
【单选题】21旅行社投保旅行社责任保险,由旅行社与保险公司协商确定责任赔偿限额, 但每人人身伤亡责任限额不得低于( )
A.
10万元
B.
15万元
C.
20万元
D.
30万元
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