单项选择题这样说是不是会好一些? A、Please let me think it over. Would it be all right to give you an answer tomorrow? B、It’s impossible for me to give a definite answer now. I need time to consultwith my colleagues. C、You must put our rights and interest into a contract. D、Isn’t it better to word it in this way?
单项选择题关于脊柱的概念错误的是