It began as just another research project, in this case to examine the effects of various drugs on patients with a severe mood disorder. Using an advanced brain scanning technology—the clumsily named echo-planar magnetic resonance spectroscopic imaging(磁共振光谱现象) procedure, or EP-MRSI—researchers at Boston’s McLean Hospital scanned the medicated and unmedicated brains of 30 people with bipolar disorder in order to detect possible new treatments for the more than 2 million American adults who suffer from the disease.
But something unexpected happened. A patient who had been so depressed and could barely speak became ebullient after the 45-minute brain scan. Then a second patient, who seemed incapable of even a smile, emerged actually telling jokes. Then another and another. Was this some coincidence Aimee Parow, the technician who made these observations (she is now a medical student in New York) didn’t think so. She mentioned the pat
A. reports a discovery
B. challenges a discovery
C. explains the problem with a discovery
D. describes the background of a discovery
甲企业的产品组合为3种洗衣粉、4种香皂、5种纸巾和6种洗发水,共18种产品。目前,乙企业生产的洗衣粉产品已经占有了原属甲企业的部分市场。为此,甲企业决定采取措施改变洗衣粉产品的形象,使顾客对其产品建立新的认识。同时,甲企业拟生产一种新型香皂,总固定成本为200万元,每块香皂可变成本为2元,每块香皂目标价格为4元。新型香皂推出后,甲企业建立了分销渠道,首先通过代理商将产品销售给批发商,再由批发商销售给零售商,最后由零售商销售给消费者。
甲企业的产品组合宽度为()。 Of all the employed workers in the
United States, 12.5 million are part of a temporary workforce. The United States
Bureau of Labor Statistics counts 9.2 percent of workers as those who have{{U}}
(62) {{/U}}they term "alternative employment arrangements". The
government predicts that temporary staffing agencies will{{U}} (63)
{{/U}}growth of 49 percent by 2010. If numbers increase{{U}} (64)
{{/U}}the rate of predicted, these companies will add 1.9 million new jobs
by 2010. Temporary workers were the first ones to be affected by the recent economic recession, but they are likely to be the first to regain{{U}} (65) {{/U}}as the economy{{U}} (66) {{/U}}and companies work to rebuild. Employers use temporary workers as a resource because they offer{{U}} (67) {{/U}}and come at a low cost. Many temporaries are{{U}} (68) {{/U}}as "ind A. who B. which C. that D. as [判断题]泡沫灭火剂指能够与水混溶,并可通过机械或化学反应产生灭火泡沫的灭火剂。
A.正确 B.错误 [多选题]决胜全面建成小康社会,要紧扣我国社会主要矛盾变化,综合施策、精准发力,特别是要坚决打好()三大攻坚战。(1.0分)
A.全面建立社会主义市场经济体制 B.防范化解重大风险 C.精准脱贫 D.污染防治 E.推进国家治理体系和治理能力现代化 [单选题]机坪作业人员发现垃圾或废弃物应当主动拾起,并分类放入( )。
A.随身容器 B.勤务手推车 C.FOD回收桶 D.车载垃圾桶 [单选题]变压器作空载试验,要求空载电流一般在额定电流的( )左右。
A.0.05 B.0.1 C.0.12 D.0.15 [单项选择]乒乓球比赛的规则是五局三胜制。甲、乙两球员的胜率分别是60%和40%,在一次比赛中,若甲先连胜了前两局,则甲最后获胜的概率是( )
A. 60% B. 81%~85%之间 C. 86%~90%之间 D. 91%~95%之间 [单项选择]维拉帕米主要作用部位是
A. 窦房结与心房肌 B. 房室结与心室肌 C. 窦房结与房室结 D. 浦氏纤维 E. 心房肌与心室肌 [判断题] 由n只不同阻值的纯电阻组成并联电路,则电路的总电流等于各支路电流的倒数和。()
A.正确 B.错误 [单选题]低压带电作业时,( )。
A.既要戴绝缘手套又要有人监护 B.戴绝缘手套不要有人监护 C.有人监护不必戴绝缘手套 [单选题]路基检查包括定期检查、( )、汛期检查和特殊检查。
A.周期性检查 B.经常检查 C.综合检查 D.不定期检查 [判断题]机构更名、金融许可证破损、营业地址或高管变更的,应当及时向银监部门重新申领金融许可证。 ( )
A.正确 B.错误 [单选题]增压柴油机机油压力的范围为( )。
A.0.2—0.4 Mpa B.0.3—0.5Mpa C.0.2—0.8 Mpa D.0.3—0.9Mpa [多选题]骨折急救时,肢体骨折可用( )等将断骨上、下方两个关节固定,也可利用伤员身体进行固定,避免骨折部位移动,以减少疼痛,防止伤势恶化。
A.夹板 B.木棍 C.废纸板 D.竹竿 [多项选择]根据《压力容器安全技术监察规程》,属于一类容器的有()。
A. 非易燃或无毒介质的低压容器 B. 易燃或有毒介质的低压分离器外壳 C. 易燃或有毒介质的换热器外壳 D. 低压管壳式余热锅炉 我来回答: 提交
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