A:RNA
B:DNA
C:蛋白质
D:多糖
用演绎推理证明“y=tanx是周期函数”时,大前提为____
要求:
1).补全题目。
2).书写整洁,语句、标点运用、单词拼写正确。
3).若写人物文中不得出现真名。
某生物兴趣小组想要探究光照和水对植物生存的影响,选择了同种且生长状况相仿的4株玉米幼苗分别栽种在4个花盆中,并将花盆编号,所给条件和探究结果如表:
环境条件与编号
1号
2号
3号
4号
时间
光照充足,适量浇水
遮光,适量浇水
光照充足,不浇水
光照充足,大量浇水
1周
生长健壮
叶片变黄,生长缓慢
死亡
Lincheng is a new developing city. There are lots of popular restaurants. Although they are not famous, they are good places to have meals.
Qingteng Yuan
Main dishes: Many different fish, meat and chicken dishes
Specials: Vegetable salad (¥20),
Roast beef (¥48 on weekdays, ¥38 on weekends)
Fruits (Free): Watermelon, apples, bananas, oranges
Tel: 876-2198
Opening Hours: 11:00 a.m.—1:00 a.m.
Ruihai Drinking
Building
Mainly all kinds of meat, pork, beef and mutton.
Specials: Roast pork (only offered on Saturday, ¥50 each)
Drinks are not allowed to take except VIP.
Tel: 897-6543
Opening Hours: 11:00 a.m.—1:30 a.m. (VIP 24 hours)
Rujia Restaurant
Mainly dumplings and noodles.
Specials: Beef and cabbage dumplings (¥5 each on weekdays, ¥4.5 on weekends)
Dumplings can be taken away.
Tel: 432-0945
Opening Hours: 11:30 a.m.—10:00 p.m.
Linglong Sea Food
Mainly sea food.
Specials: Roast fish (¥25 each)
Tel: 287-9056
Opening Hours: 11:00 a.m.—12:00 p.m. (From Monday to Thursday)
11:00 a.m.—2:00 a.m. (Friday, Saturday, Sunday)