【单选题】Task 2 Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 through 45. Human cloning(克隆) technology could be used to reverse heart attacks. Scientists...
A.
moving the damaged part of the heart
B.
replacing the old heart with a cloned one
C.
repairing the heart with cells cloned from healthy ones
D.
giving the patients injections of various medicines
【单选题】"He never told the people whom he worked with what she gave him, because it was a secret." What is "he never told the people whom he worked with what she gave him"?
【简答题】阅读短文,根据所读内容, 在下表中的空格处填上适当的单词或短语, 每空不超过3个单词。 Cloning has caused much debate..On the one hand , some scientists think valuable tissues and organs can be used to save human lives .On the other hand , som...
【单选题】_______cloning human embryos is not legal in many countries, some scientists are already pushing ahead with research in order to produce a cloned human baby.