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【单选题】
April Fools’ Special: History’s Hoaxes(骗局)
April Fools’ Special: History’s Hoaxes(骗局)Internet HoaxesBan Dihydrogen Monoxide(一氧化二氢)Alabama Changes Value of PiCrop CirclesMoon Landing—a HoaxAccording to a hoax announcement, the Taco Bell Corporation bought the Liberty Bell and moved it to Irvine in order to help （）.
A. the national debt
B. its purchase
C. its public relations
D. the company
B. its purchase
C. its public relations
D. the company
A.
Happy April Fools’ Day. To mark the occasion, National Geographic News has compiled a list of some of the more memorable hoaxes in recent history. They are the lies, darned(可恨的) lies, and whoppers() that have been perpetrated on the gullible(易受骗的) and unsuspecting to fulfill that age-old desire held by some to put joke on others.
B.
Internet Hoaxes
C.
The Internet has given birth to a proliferation(增殖) of hoaxes. E-mail inboxes are bombarded on an almost daily basis with messages warning of terrible computer viruses that cause users to delete benign(良性) chunks of data from their hard drives, or of credit card seams that entice the to give all their personal information, including passwords and bank account details, to identity thieves. Other e-mails give rise to wry(歪曲的) chuckles, which is where this list begins.
D.
Ban Dihydrogen Monoxide(一氧化二氢)
E.
City officials in Aliso Viejo, California, were so concerned about the ers of dihydrogen monoxide that they scheduled a vote last month on whether to ban foam (泡沫) cups from city-sponsored s after they learned the chemical was used in foam-cup production.
F.
Officials called off the vote after learning that dihydrogen monoxide is the scientific term for water.
G.
"It’s embarrassing, " city manager David J. Norman told the Associated Press. "We had a paralegal(律师助手) who did bad research. "
H.
Indeed, the paralegal had fallen victim to an official-looking web site touting the ers of dihydrogen monoxide. An e-mail originally authored in 1990 by Eric Lechner, then a graduate student at the University of California, Santa Cruz, claimed that dihydrogen monoxide "is used as an industrial solvent and coolant, and is used in the production of Styrofoam(聚苯乙烯泡沫塑料). "
I.
Other ers pranksters(爱开玩笑的人) associated with the chemical included accelerated corrosion and rusting, severe bums, and death from inhalation.
J.
Versions of the e-mail continue to circulate today, and several web sites, including that of the Coafition to Ban DHMO, warn, tongue-in-cheek, of water’s ers.
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【判断题】二价铁离子Fe2+主要存在于地下水中，地表水含量极少，因地表水含有充足的溶解氧，Fe2+易被氧化成Fe3+，继而水解生成Fe（OH）3。所以地表水只可能存在Fe（OH）3胶体物或某些高价有机铁。（）
A.
正确
B.
错误
【单选题】遗传监测常用的方法有：（）：通过电泳检测各种同工酶如脂酶、过氧化氢酶等生化标记。
A.
物化学方法
B.
形态学方法
C.
分子生物学方法
D.
细胞遗传学方法
【单选题】女，33岁，4年前始反复上腹痛，餐前出现，餐后缓解。今晨突然出现剧烈腹痛来诊。查体：血压80/40mmHg，体温38.9℃，上腹部压痛、反跳痛及肌紧张，肠鸣音减弱，红细胞4.2×109/L，白细胞22×109/L。 糖酵解途径中生成丙酮酸必须进入线粒体内氧化，因为
A.
乳酸不能通过线粒体膜
B.
为了保持胞质的电荷呈中性
C.
丙酮酸脱氢酶在线粒体内
D.
胞质中生成的丙酮酸别无其他去路
相关题目：
【判断题】二价铁离子Fe2+主要存在于地下水中，地表水含量极少，因地表水含有充足的溶解氧，Fe2+易被氧化成Fe3+，继而水解生成Fe（OH）3。所以地表水只可能存在Fe（OH）3胶体物或某些高价有机铁。（）
A.
正确
B.
错误
【单选题】遗传监测常用的方法有：（）：通过电泳检测各种同工酶如脂酶、过氧化氢酶等生化标记。
A.
物化学方法
B.
形态学方法
C.
分子生物学方法
D.
细胞遗传学方法
【单选题】女，33岁，4年前始反复上腹痛，餐前出现，餐后缓解。今晨突然出现剧烈腹痛来诊。查体：血压80/40mmHg，体温38.9℃，上腹部压痛、反跳痛及肌紧张，肠鸣音减弱，红细胞4.2×109/L，白细胞22×109/L。 糖酵解途径中生成丙酮酸必须进入线粒体内氧化，因为
A.
乳酸不能通过线粒体膜
B.
为了保持胞质的电荷呈中性
C.
丙酮酸脱氢酶在线粒体内
D.
胞质中生成的丙酮酸别无其他去路
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