单项选择题

It may be concluded from the passage that testing （）.

A．should test only opinions
B．should always be written
C．has changed since the Middle Ages
D．is given only in factories

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单项选择题

24（）

A．to
B．with
C．for
D．towards

单项选择题

Which of following is the best title for the passage （）

A．Fluctuations in Weather Patterns.
B．Magnetism and the Sun Spots.
C．The Size and Number about the Earth’s.
D．Livingston’s New Theory about the Earth’s Climat