题干

在下面一段文字横线处补写恰当的语句,使整段文字语意完整连贯,内容贴切,逻辑严密。(每处不超过12个字。)

病毒一开始只是在局部范围内爆发,构不成全球威胁。一旦①____,人们才开始投入人力和物力,展开研究。美国将感染的医生接回国内,等于②____。之所以敢这么做,是因为人类已经掌握了埃博拉病毒的传播途径和控制方法。目前在制备疫苗中可能会出现一些困难,但③____,我们大可不必担心。

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答案(点此获取答案解析)

构成全球威胁时,将活病毒主动带回国,这些困难会逐渐解决

同类题2

在短文的空格内填入适当的词,使其通顺。每空格限填一词,首字母已给。

    "Olyvia, love is simple. You don't have to do much to make someone happy. "That was what my mother said to me when I was a child. Over a year ago, I had a chance. My good friend Kaylee told me about her t____ to a small town called Gary, and how it was a life-changing experience. I made up my mind to go there myself.

    When I told my parents about the decision, they didn't a____ at first. They said I didn't know much about the place. They were worried that it was not s____ for me to go there. Thankfully, after I explained my plan to them in detail, they said yes.

    When our group arrived in Gary, I noticed how different the town was from where I lived. There were few stores or restaurants in the town; most had closed. So you would be very l____ if you could find a place to buy food or drinks. Houses were built on small hills. Many of them had broken doors or windows. My job was to help the local people to r____ houses.The work days were long and hot, but it was really good to see the houses taking on a new look day by day.

    The children there were also different. They seemed to enjoy every moment in life though they were poor. The smallest things would make these kids happy. I couldn't find words to describe their j____ when they received an ice-cream, a ball or even a kiss. The community was like a big family. Everyone knew each other and was there when someone needed help.

    I am so glad that I had this unforgetable experience. I truly learned the m____ of what my mother said. You don't need to do much to make a difference to others' lives.