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【单选题】
二次检索可以在第一次检索基础上进一步缩小范围和更精准定位,如在检索汽车价格的结果中,精确定位于:整车价格。所以二次检索是指()。A.
第二次检索
B.
上次检索结果中进一步检索
C.
字段限定检索
D.
利用两种方法进行检索
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反馈参考答案：
举一反三
【单选题】Excuse me, I'm waiting for a long time. I'm so hungry.
A.
Really?
B.
Sorry, I'll check your order with the chef.
【单选题】I'm sorry. I started eating before you got here ________ J was terribly hungry. [ ]
A.
so
B.
since then
C.
because
D.
so that
【单选题】— Could you give me ______ to eat? I’m so hungry. — Of course. Here are some cakes and fruits.
A.
something
B.
anything
C.
everything
D.
nothing
【多选题】参与科技实践活动可以使大学生( )。
A.
在较宽领域内增加非本专业的科学知识
B.
了解和借鉴其它科技领域的科学方法
C.
增强科学意识,提高科学能力
D.
提高大学生的创新设计能力、工程实践能力和社会调查能力
【单选题】听力原文：W: on a diet? I'm so hungry. I could eat a horse! M: If you do not watch your weight, you're going to end up as big as a horse. Q: What do we know about the woman? (17)
A.
She is breaking her diet.
B.
She is as big as a horse.
C.
She is worrying about her weight.
D.
She is watching horse race.
【单选题】— Could you give me ______ to eat? I’m so hungry. — Of course. Here are some cakes and fruits.
A.
nothing
B.
anything
C.
everything
D.
something
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