问题
单项选择题
血清中补体固有成分含量最高的是（）
A.C3
B.C1
C.C4
D.C5
E.Ⅰ因子
答案
参考答案：A
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血清中补体固有成分含量最高的是（）
A.C3
B.C1
C.C4
D.C5
E.Ⅰ因子
参考答案：A
从每题A、B、C、D四个选项中，选出一个最佳答案完成对话。(5分) Sandy: Could I invite my friends to a party on Saturday, Mom? Mom: That sounds like fun. Sandy: Yeah. Ummm…could I borrow some money? Mom: Sandy: I need to buy some drinks and snacks. Could I go to the store? Mom: Well, I’m going tomorrow, and I can buy some drinks and snacks for you. Sandy: Oh, good. Thanks, Mom. Mom: Oh, could you clean your room? Sandy: Mom: You need to clean it again for your party Sandy: OK. At the party, could I use your CD player? Mom: Yes, if you’re careful with it. Sandy: Don’t worry, Mom! Mom: Now, there are a few other things I want you to do before the party. Could you move the good chairs to the bedroom and clean the living room? Sandy: Dave is coming early on Saturday, so he can help me.
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