经A省的防疫部门检测，在该省境内接受检疫的长尾猴中，有1％感染_爱下问搜题

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问题单项选择题

经A省的防疫部门检测，在该省境内接受检疫的长尾猴中，有1％感染上了狂犬病。但是只有与人及其宠物有接触的长尾猴才接受检疫。防疫部门的专家因此推测，该省长尾猴中感染有狂犬病的比例，将大大小于l％。以下哪项如果为真，将最有力地支持专家的推测

A．在A省境内，与人及其宠物有接触的长尾猴，只占长尾猴总数的不到10％。

B．在A省，感染有狂犬病的宠物，约占宠物总数的l％。

C．在与A省毗邻的B省境内，至今没有关于长尾猴感染狂犬病的疫情报告。

D．与健康的长尾猴相比，感染有狂犬病的长尾猴更愿意与人及其宠物接触。

答案

参考答案：D

解析：如果D项操作的结果是孕妇缺乏维生素而非孕妇不缺乏维生素，则将加强题干的结论；否则，将削弱题干的结论。因此，D项操作对于评价题干的结论具有重要性。

完形填空

The students at Sandy's high school were badly shaken by the news that a classmate had __36  himself．The suicide note read: “It’s hard to 37 when nobody cares.”
Glen, a teacher, realized this was a 38 moment about the importance of making people feel _39 ． He asked his class to imagine they were about to _40 and to write a note "telling someone how and why you _ 41 him or her."
Sandy, who had a   42_ relationship with her mother, decided to write her _43 . Her letter read: "We've had some 44_ times and I haven't always been a very good _ 45  , but I know I'm lucky to have you in my life． You're the _ 46_ person I've ever known．And even when I disagree with you, I never _ 47 _you love me and want what's best for me．Thanks for not   48  up me.”
When her mom read the note, she cried and hugged Sandy   49 but said little．
The next morning, Sandy found a  50 on her mirror: "Dearest Sandy, I want you to know being your mother is, by far, the most important thing in my life． 51_ I got your note , I thought I had lost your love and 52 . I felt like such a failure．I intended to 53 it all last night．Your note saved my 54 .”
Be careful not to underestimate(低估) the 55 of expressed appreciation. It won't always save a life, but it will always make someone's life better．

单项选择题

您已接近铁路，没有报警装置过境，无法看到400英尺下一个方向的轨道。你应该（）。

A、驱动器在正常轨道

B、停止前行，直到前一列火车来了

C、拉过来的公路旁

D、慢下来，谨慎，在两个方向上寻找