题目内容

Text ALearning special phrasesChoose the best answer to explain the underlined phrases in the following sentences.(1) But when she called her doctor's office, he was booked solid, and her symptoms didn't seem to strike anyone as terribly worrisome. (Para.2)

A. busy
B. vacant
C. incompetent

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(2) Besides, five months earlier, when she'd been feeling light-headed and tired, she'd undergone a treadmill stress test and had been given a clean bill of health. (Para.3)

A. health check
B. health certificate
C. health care

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(3) A few months ago, a shocking study suggested that as children pile on the pounds, they're putting stress on blood vessels and ratcheting up the likelihood of cardiovascular problems in the future. (Para. 5)

A. are growing up
B. are getting fat
C. are losing weight

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2) Choose the best answer to complete the following sentences.(1) According to NIH, some products, such as brain boosters and memory enhancer, are _____ to dementia.

A. helpful
B. harmful
C. futile
D. fatal

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(2) _____ is new role for cardiovascular system according to investigators.

A. Supply the brain with plenty of oxygen-rich blood
B. Deferring senile dementia
C. Eliminating memory problems
D. Understanding the situation of nerve cells

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Text ALearning special phrasesChoose the best answer to explain the underlined phrases in the following sentences.(1) But when she called her doctor's office, he was booked solid, and her symptoms didn't seem to strike anyone as terribly worrisome. (Para.2)

A. busy B. vacant C. incompetent

(2) Besides, five months earlier, when she'd been feeling light-headed and tired, she'd undergone a treadmill stress test and had been given a clean bill of health. (Para.3)

(3) A few months ago, a shocking study suggested that as children pile on the pounds, they're putting stress on blood vessels and ratcheting up the likelihood of cardiovascular problems in the future. (Para. 5)

2) Choose the best answer to complete the following sentences.(1) According to NIH, some products, such as brain boosters and memory enhancer, are _____ to dementia.

(2) _____ is new role for cardiovascular system according to investigators.

A. busy
B. vacant
C. incompetent