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【多选题】
拉拉手率先采用的 “买方先询价、卖方后报价”的交易模式,( )等特色服务让消费者获得了物美价廉的商品和服务,为企业创造了新的商业机会。A.
比较购物
B.
集体竞买
C.
积分购物
D.
电子优惠券
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举一反三
【单选题】Which of the following statements is NOT true?
A.
Today you can get calcium without eating any high-fat or high-calorie foods by choosing skim milk or low-fat yogurt.
B.
Calcium plays an important role in the movement of protein and nutrients inside cells.
C.
You can rely on pills instead of a calcium-rich diet to take enough calcium.
D.
If you want to absorb calcium, you should expose yourself to the sun's rays.
【单选题】During an action potential, calcium is released into the sarcoplasm, near the actin and myosin molecules. Which of the following is the best explanation of what the calcium does?
A.
The calcium binds to the actin and myosin and makes them work together.
B.
The calcium breaks apart ATP to ADP and P.
C.
The calcium removes the tropomyosin block.
D.
The calcium causes the release of acetylcholine.
【单选题】Which statement is NOT true about effects of calcium overload on nerve cells?
A.
Calcium overload induced decreased glutamate level in brain
B.
Calcium overload interfering with tissue energy metabolism
C.
Calcium overload aggravates cerebral ischemia and hypoxia
D.
Calcium overload induced ROS production
【单选题】VB提供了结构化程序设计的三种基本结构,三种基本结构是( )。
A.
递归结构、选择结构、循环结构
B.
选择结构、过程结构、顺序结构
C.
过程结构、输入输出结构、转向结构
D.
选择结构、循环结构、顺序结构
【简答题】Which of the following statements is NOT true? [A] Today you can get calcium without eating any high-fat or high-calorie food by choosing skim milk or low-fat yogurt. [B] Calcium plays an important ro...
【单选题】VB提供了结构化程序设计的三种基本结构,这三种基本结构是()
A.
递归结构、选择结构、循环结构
B.
过程结构、顺序结构、转向结构
C.
递推结构、顺序结构、选择结构
D.
顺序结构、选择结构、循环结构
【简答题】Besides calcium and iron, athletes also need______which will help them access energy and pr them from getting ill.
【单选题】Which of the following statements is NOT true?
A.
Today you can get calcium without eating any high-fat or high-calorie foods by choosing skim mill or low-fat yogurt.
B.
Calcium plays an important role in the movement of protein and nutrients inside cells.
C.
You can rely on pills instead of a calcium-rich diet to take enough calcium.
D.
If you want to absorb calcium, you should expose yourself to the sun's rays.
【单选题】We may infer that 'iodine, fluoride and calcium' are______.
A.
substances which act positively or negatively on man's health
B.
harmful substances in the water supply
C.
substances which help provide breeding places for pests
D.
substances contributory to good health
【简答题】C 程序设计的三种基本结构是 ___________ 结构、选择结构、循环结构
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