单项选择题

A．Speak very slowly but loudly.
B．Ask questions frequently.
C．Vary pitch, volume and speed of speech.
D．Keep the speech clear and concise.
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单项选择题
A．A comparison of fish as a cold-blooded animal with warm-blooded animals.B．The difference between water animals and land animals.C．The importance of fish to human beings.D．How water has affected the development of fish.
A．A comparison of fish as a cold-blooded animal with warm-blooded animals.
B．The difference between water animals and land animals.
C．The importance of fish to human beings.
D．How water has affected the development of fish.
单项选择题
A．He wears blue jeans when exercising.B．He hasn’t bought new pants for a while.C．He has bought plenty of new blue jeans recently.D．He has gained weight lately.
A．He wears blue jeans when exercising.
B．He hasn’t bought new pants for a while.
C．He has bought plenty of new blue jeans recently.
D．He has gained weight lately.
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