填空题


The C-D-C officials say _____ is a major cause of sickness and death in the United States.

【参考答案】

tobacco use
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单项选择题
What is the main idea of the passage
A．Eating chocolate might help you lose weight.
B．Eating chocolate might help you develop heart attacks.
C．Eating chocolate is a bad option for fat people.
D．Eating chocolate may help you prevent heart disease.
单项选择题
When a bone bends but does not break, it is called ______ .
A．a hairline fracture
B．a comminuted fracture
C．a bowing fracture
D．an open fracture
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