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visualfoxpro提供了4种不同的索引,分别是________、候选索引、普通索引和唯一索引。

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在visualfoxpro6.0中,表有两种类型,即________和自由表。

Use the proper words or expressions to fill in the following blanks of the sentencesand write thecorresponding LETTERon the answer sheet.A. posthumousB. boom C. a stone's throwD. tediousE. highlightF. outstrip1. M:Excuse me, Madam. I'm a stranger here. Can you tell me the way to the Grand Theatre?W:Go along this street for about 3 minutes, and then you will see it. It's _____ away from here.2. The _____ of the Spring Festival Gala is Faye Wong's performance.3. The U.S is known for jazz, a completely original type of music that has gained world-wide _____.4. It seems to you that mainly what you want is to get away; get away from the same old _____ things you're so used to seeing and so tired of, and set something new.5. A Stag asked a Sheep to lend him a measure of wheat, and said that the Wolf would be his surety. The Sheep, fearing some fraud was intended, excused herself, saying, "The Wolf is accustomed to seizingwhat he wants and to runningoff; and you, too, can quickly _____ me in your rapid flight. How then shall I be able to find you, when the day of payment comes?”The Moral: Two blacks do not make one white.6. It was well we should be contented with _____ fame, but impossible to be so with _____ bread and cheese. (这两个空的词是一样的,所以就选一个字母就可以)

如果家里养了猫猫狗狗,应该如何对待家里的宠物?

A. 赶紧把它扔了,避免在家传播病毒。
B. 把宠物洗净,加入少量大蒜、八角、孜然,高温消毒。
C. 减少遛狗等外出行为,和猫狗玩耍后,及时用肥皂洗手。
D. 把猫狗关起来,不接触。

如何区分普通感冒、流感和新型肺炎?

A. 普通感冒症状常出现鼻塞,有时会出现1-3天的低中度发烧。普通感冒一般比较少出现全身性症状;
B. 流行性感冒一般伴有发热症状,并且为3-5天的明显高热症状。此外流感常常伴有全身肌肉酸痛、乏力等全身性症状;
C. 新冠肺炎目前观察来看,主要症状有发热、咳嗽、呕吐和腹泻等。
D. 新冠肺炎的诊断很大程度参考流行病学史

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