单项选择题

A．Two-thirds of all Canadian households.
B．Three-fourths of all Canadian households.
C．Half of the Canadian households.
D．All of the Canadian households.
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单项选择题
A．They found ways to speed up the reproduction of bald eagles.B．They developed new types of feed for baby bald eagles.C．They explored new ways to hatch baby bald eagles.D．They brought in bald eagles from Canada.
A．They found ways to speed up the reproduction of bald eagles.
B．They developed new types of feed for baby bald eagles.
C．They explored new ways to hatch baby bald eagles.
D．They brought in bald eagles from Canada.
单项选择题
A．How much the cut hurt.B．How deep the cut was.C．How easily he was cut.D．How concerned the woman was.
A．How much the cut hurt.
B．How deep the cut was.
C．How easily he was cut.
D．How concerned the woman was.
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