长于凉血消斑的药物是()
A.辛味
B.甘味
C.酸味
D.苦味
E.咸味
参考答案:A
解析:
[知识点] 清热解毒药——大青叶
长于凉血消斑的药物是()
A.辛味
B.甘味
C.酸味
D.苦味
E.咸味
参考答案:A
解析:
[知识点] 清热解毒药——大青叶
判断下列说法是否正确,并用合适的化学用语解释
含氧元素的化合物一定是氧化物 | ______ |
某些元素在不同的化合物中显示不同的化合价 | ______ |
单质是一种元素组成的纯净物 | ______ |
所有物质都是由分子构成的 | ______ |
阅读理解。 |
In early autumn I applied for admission to college.I wanted to go nowhere but to Cornell University, |
1. The author was not allowed to go to Cornell University mainly because _____. A. his father graduated from the university B. his mother did not think it a great university C. his parents needed him to help support the family D. his parents did not have enough money for him 2. The father started his small shop with the money from _____. A. a local league B. his university C. his relatives D. his college friends 3. Why did the mother renew her membership in the league? A. To help with her husband's business. B. To raise money for her son. C. To meet her longforgotten friends. D. To better manage her life. 4. According to the text, what was the author determined to do in that autumn? A. To get a wellpaid job for himself. B. To improve relations with his mother. C. To go to his dream university. D. To carry on with his father's business. |