问题
单项选择题
生物技术又称生物工程，是直接或间接利用生物以及其组织和功能的全新领域，使在分子生物学等现代生物科学理论指导下的各种（）的总称。
A.生物利用
B.生物制造
C.生物克隆
D.生物指导
答案
参考答案：A
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生物技术又称生物工程，是直接或间接利用生物以及其组织和功能的全新领域，使在分子生物学等现代生物科学理论指导下的各种（）的总称。
A.生物利用
B.生物制造
C.生物克隆
D.生物指导
参考答案：A
Have you ever offered a helping hand to those who are in trouble? One day, two ______ were walking along the road to school when they saw an old woman carrying a large basket of pears. They thought the woman looked very ______. They went up to her and said, “Are you going to town? If you are, we will help carry your basket.” “Thank you,” ______ the woman, “you are very kind. You see I’m weak and ill.” Then she told them that she was now going to market to ______ the pears which grew on the only tree in her little garden. “We are all going to the ______.” said the boys. “Let us have the basket.” And they took hold of it, one each side. They walked ______ with the heavy basket, but happily. The other day, I saw a little girl stop and ______a piece of orange peel (皮), which she threw into the dustbin (垃圾桶), “I wish ______ would throw that on the sidewalk,” said she. “Someone may step on it and fall.” Perhaps some may say that these are not ______ things. That is right. But such a little thing shows that you have a thoughtful mind and a feeling heart. We must not wait for the ______ to do great things. We must begin with little things of love.
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