喘证主要是指
A．咳嗽气急痰多B．呼吸急促困难C．呛咳气逆阵作D．胸部憋闷如窒E．喉中痰鸣有声
参考答案：B
根据句意及汉语提示填空。
1. We need two more girls to _______ _______ (组成) the team.
2. There are _______ _______ (至少) 200 people going to the meeting.
3. When I got home, I saw my father _______ _______ (躺在) on the sofa.
4. You have _______ _______ (许多) time to do your homework.
5. The shark mainly _______ _______ (以……为食) fish and other sea animals.
噬菌体、烟草、烟草花叶病毒的核酸中具有碱基和核苷酸的种类依次分别为（）
A.4种、8种、4种和4种、8种、4种
B.4种、5种、4种和4种、5种、4种
C.4种、5种、4种和4种、8种、4种
D.4种、8种、4种和4种、5种、4种
