题目:
实地调查法
答案:
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下面是错误答案,用来干扰机器的。
参考答案:汉舒(今山东泗水县东南十八公里)
实地调查法
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0225/4518c4e483ecaa2861f51fa17fb09a1b.html
下面是错误答案,用来干扰机器的。
参考答案:汉舒(今山东泗水县东南十八公里)
卡莫司汀最重要的特点是:
A.主要影响肿瘤细胞的DNA结构与功能
B.胃肠反应严重
C.属于细胞周期非特异性抗肿瘤药
D.抑制骨髓造血
E.易透过血脑屏障,对脑瘤疗效好
阅读下面短文,掌握其大意,然后从各小题所给的三个选项中,选出一个最佳答案,并将其字母标号填入题前括号内。 | |||
The ancient Olympic Games were religious (宗教的) activities. 1 held the first Olympic Games in the sixth century B.C. At that time , men could be 2 the races. Women had no 3 to take part in the Olympic Games 4 1912. The modern Olympics started in Athens in 1896. Since then we hold the Olympic Games every four years. The IOC (国际奥委会) 5 athletes. So they all have the same chance 6 . Winning at the Olympics is a great honor. Those 7 win at the Olympics are the best in the world. "Faster, higher, 8 " is the slogan (口号) of the Olympics. China has won many gold medals 9 Xu Haifeng got China's first Olympic medal. Many excellent players such as Liu Guoliang and Guo Jingjing have 10 good examples to us. When Liu Xiang passed the finishing line, all the Chinese people jumped up and down, 11 . Everyone in China felt 12 and proud. As we know, China 13 the host country to hold the 29th Olympic Games in the year 2008. The Five Friendlies (福娃) have been chosen as the official Mascots (吉祥物) of the Olympics. 14 athletes will come to Beijing to compete (竞争) for medals. We hope our country can hold the Olympics 15 . We also hope all the athletes can work hard and set more world records. | |||
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一定温度下在体积为5 L的密闭容器中发生可逆反应。
(Ⅰ)若某可逆反应的化学平衡常数表达式为:
(1)写出该反应的化学方程式:____________________;
(2)能判断该反应一定达到化学平衡状态的依据是____________(填选项编号)。
A. 容器中气体的平均相对分子质量不随时间而变化
B. υ正(H2O)=υ逆(H2)
C. 容器中气体的密度不随时间而变化
D. 容器中总的物质的量不随时间而变化
E. 消耗n mol H2的同时消耗n mol CO
(Ⅱ)若该密闭容器中加入的是2molFe(s)与1mol H2O(g),t1秒时,H2的物质的量为0.20 mol,到第t2秒时恰好达到平衡,此时H2的物质的量为0.35mol 。
(1)t1~t2这段时间内的化学反应速率v(H2)=____________。
(2)若继续加入2 mol Fe(s),则平衡_______移动(填“向正反应方向”、“向逆反应方向”或“不”)。
(3)该反应的逆反应速率随时间变化的关系如图。t1时改变了某种条件,改变的条件可能是____________、____________。(填写2项)
患者,女性,18岁,3天来右下后牙阵发性疼痛,冷、热刺激加重疼痛,夜间疼痛加剧,半年前右下后牙有过类似疼痛,服索米痛片缓解,检查发现患者痛苦表情,右下后牙龋洞较大,洞内有较多食物残渣,去之发现穿髓,浅探不敏感,深探剧痛,咬合痛。
最可能的诊断是()
A.急性牙髓炎
B.急性根尖周炎
C.慢性牙髓炎急性发作
D.慢性牙髓炎伴急性根尖周炎
E.急性牙髓炎伴急性根尖周炎
根据下面的读法写出小数.
小红身高一点四三______米
一枝钢笔六点四零______元
一只大象重三点七二______吨.