用于去甲肾上腺素静脉滴注外漏时的药是（）
A.酚妥拉明
B.异丙肾上腺素
C.酚苄明
D.普萘洛尔
E.噻吗洛尔
参考答案：A
下列反应中，水只表现氧化性的是
A．2Na +2H2O ＝2NaOH +H2↑
B．Cl2 +H2O ＝HCl + HClO
C．2F2 +2H2O ＝4HF +O2
D．CaO +H2O ＝Ca(OH)2
根据提示及句意完成下列句子。
1. This box is made of_________ (金属).
2. — What is the _________ (长度)of this road?
— It's about 168 kilometers.
3. My best friend's __________ (微笑的) eyes make her look cheerful and friendly.
4. I hope I can __________ (收得到)your letter soon.
5. __________ students learn to cook and sew in a Home Economics class.
students learn to cook and sew in a Home Economics class.