行为的漠不关心构成了强烈的对比，这种学习发生的过程现在已经成为仔细研究的对象。
【解题分析】第一空格后的with和regard构成词组regard with, 故第一空格填某种态度，第二空格填一种相反态度。构成一组相反态度的为b。
【重点词条】acquisition 1: the act of acquiring 2: something acquired or gained —— ac.qui.si.tion.al adj —— ac.quis.i.tor n
scrutiny 1: a searching study, inquiry, or inspection: examination 2: a searching look 3: close watch: surveillance
5【中文释义】这位议员的声明 她对是否参加第二届连任竞选仍未下决心 是很可信的，考虑到她的竞选委员会的极为冷淡的集资活动。
【解题分析】given 表示因果关系，答案为 d 。
【重点词条】clandestine : marked by, held in, or conducted with secrecy: surreptitious syn see secret —— clan.des.tine.ly adv —— clan.des.tine.ness n —— clan.des.tin.i.ty n
apathetic 1: having or showing little or no feeling or emotion: spiritless 2: having little or no interest or concern: indifferent syn see impassive —— ap.a.thet.i.cal.ly adv
straight.for.ward adj (1806) 1 a: free from evasiveness or obscurity: exact, candid b: clear-cut, precise 2: proceeding in a straight course or manner: direct, undeviating —— straight.for.ward.ly adv —— straight.for.ward.ness n 2straightforward also straight.for.wards adv (1809): in a straightforward manner enerdetic
6【中文释义】直到最近，对糖尿病的研究一直作为一种抑制疾病的手段，尝试改进治疗效果，主要因为根本没有预防性的方案看上去是可行的。
【解题分析】as a kind of holding action修饰下文，holding action为抑制作用的意思。与下文的 preventive strategy相比：一个是疾病发生前的预防措施，另一个则应为疾病发生后的抑制疾病危害的治疗手段。第一空格为 d 。
【重点词条】
1hold
hold back vt (1535) 1: to hinder the progress or achievement of: restrain 2: to refrain from revealing or parting with ~ vi 1: to keep oneself in check 2: to refrain from revealing or parting with something
hold-down n (1888) 1: something used to fasten an object in place 2 a: an act of holding down b: limit
hold down vt (1533) 1: to keep within limits 2: to assume the responsibility for
hold off vt (15c) 1: to block from an objective: delay 2: to defer action on: postpone 3: to fight to a standoff: withstand ~ vi: to defer or temporarily stop doing so
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责任编辑：sealion1986
