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短文填空 What can you do to keep healthy? Perhaps for children, healthy eating is one of the most important things. Here are some ideas about 1 to eat healthily. ★ Having breakfast A good breakfast is very important to children. It's necessary to have it in the 2 . But some children often go to school 3 breakfast, just because they want to sleep a little longer. Remember that a good breakfast will help you study better. ★ Having milk “My dream is that all the Chinese children can get half a kilogram of milk a day.”The Chinese former premier(前总理) Wen Jiabao said this during his 4 to a milk farm. Milk is also very important to children's health. It makes children grow stronger. It's better for you to 5 a glass of warm milk 6 going to bed. That will help you have a good sleep. ★ Having healthy food Having healthy food is the most important. That means eating lots of different 7 of food, especially fruits and vegetables. Don't eat too much chocolate 8 ice-cream. Some of you 9 eating fast food, but in fact it is not good for your health. Try to eat healthy food as much as 10 . Have healthy eating habits, and you will have a strong body.
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【单选题】能够与植物的根系形成共生体结构—菌根的微生物是()
A.
根瘤菌
B.
弗兰克氏菌
C.
菌根真菌
D.
鱼腥藻
【简答题】根据半径求圆周长。设变量r保存半径,执行图中所示流程后,计算结果保存在变量s中(圆周率取3.14),请在第21题到第23题中分别填写下面流程图中【1】【2】【3】各空内容。注意:请将第21题中的空【1】答案填到本题里。空【2】答案填到第22题,空【3】答案填到第23题。答题规范:①不使用多余的空格、括号,如,a+b>=100②文字用""引起来,如,"非圆形"③标点符号一律用西文半角,如,+-*/=...
【判断题】( ) 经过研磨后的零件,抗蚀性和疲劳强度相应得到提高。
A.
正确
B.
错误
【单选题】通常认为,在汉代哪位皇帝时期,《老子》这部书具有经的地位。()
A.
汉文帝
B.
汉高祖
C.
汉景帝
D.
汉桓帝
【简答题】根据半径求圆周长。设变量r保存半径,执行图中所示流程后,计算结果保存在变量s中(圆周率取3.14),请在第15题到第17题中分别填写下面流程图中【1】【2】【3】各空内容。注意:请将第15题中的空【1】答案填到本题里。空【2】答案填到第16题,空【3】答案填到第17题。答题规范:①不使用多余的空格、括号,如,a+b>=100②文字用""引起来,如,"非圆形"③标点符号一律用西文半角,如,+-*/=...
【简答题】男性,43岁,农民,反复多关节肿痛伴晨僵6年,初诊为类风湿关节炎,长期服中药和布洛芬等消炎止痛药治疗,仍逐渐出现双手掌指关节半脱位和尺侧偏斜,近1年关节疼痛加重并出现反复上腹疼痛,空腹及夜间明显,6个月前曾呕吐过咖啡样物。查体:上腹部轻压痛,右手第3及左手第2、3近指关节肿,右膝关节肿胀、屈曲畸形。X线示右膝关节多处骨质缺损,关节间隙消失,化验:便隐血(-)。为明确上腹痛病因,首选的检查是A、上消...
【判断题】[判断题]经过研磨后的零件,抗蚀性和疲劳强度相应得到提高。
A.
正确
B.
错误
【单选题】以下关于菌根的说法,错误的是()
A.
菌根可分为内生菌根、外生菌根和内外生菌根
B.
根瘤菌可与豆科植物共生形成菌根
C.
能够被菌根真菌侵染的植物被称作菌根植物
D.
外生菌根具有哈蒂氏网这一结构特点
【判断题】经过研磨后的零件,抗蚀性和疲劳强度相应得到提高。
A.
正确
B.
错误
【简答题】 习题 2-1 用平底锅烧开水,与水相接触的锅底温度为 111 °C,热流密度为 42 400 W/m 2 。使用一段时间后,锅底结了一层平均厚度为 3mm 的水垢。假设此时与水相接触的水垢表面温度及热流密度分别等于原来锅底的值,试计算水垢与金属锅底接触面的温度。水垢的导热系数取 1 W/(m·K) 。 请在作业本中写出计算过程,将答案填入下面空格中, 答案单位为°C,仅填写最后计算结果的数字部...
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