家蚕是通过有性生殖繁殖后代的，其特点是；（）A．有精子和卵细胞融合的过程B．由卵细胞直接发育成新个体C．雌雄同体，异体受精D．雌雄同体，自体受精-生物

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• Life is ten percent what happens to you and ninety percent _____ you respond to it. [ ]A. that B. wh
• — He is eager to try something he has never tried before. — Oh, I see. That's ____ he's di
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• Having arrived at the earthquake-stricken area, we were led to ____ the homeless people lived. [ ]A.
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• The road is covered with snow. I can't understand ______ they insist on going by motor-bike. [
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• We cannot figure out __quite a number of insects, birds, and animals are dying out.[ ]A. that B. asC
• —Hi, Peter. You seem to have gained a lot of weight.— Well, good food, not enough exercise. That
• In peace, too, the Red Cross is expected to send help _____ there is human suffering. [ ]A. whoever
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• Parents are taught to understand ______ important education is to their children's future.[ ]A.
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