单项选择题


Questions 21—23 are based on a passage about cloning. You now have 15 seconds to read Questions 21—23.
What has cloning bypassed

A．The nuclear transfer.
B．The process taking DNA.
C．The normal reproductive process.
D．The creation of cells.
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单项选择题
A．The woman forgot making orange juice.B．The woman didn’t see orange juice.C．The man broke the container of juice.D．The man drank the juice.
A．The woman forgot making orange juice.
B．The woman didn’t see orange juice.
C．The man broke the container of juice.
D．The man drank the juice.
单项选择题
According to the passage, scholars and students are great travellers because ______.
A．standards are higher at foreign universities
B．their governments encourage them to travel
C．salaries and conditions are better abroad
D．they are eager for new knowledge
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