The author writes this passage mainly to ______.
A. interpret the modes of various dreams
B. delve further the process of information we get each day
C. discuss the causes that provoke dreams
D. bring to light some of the facts about dreams
We don't know the exact number of Mark Twain’s works.
A. Y
B. N
C. NG
Why do we feel the plane's acceleration？
A. Because our bodies gain speed just as fast as the plane.
Because our bodies do not gain speed.
C. Because our bodies gain speed more slowly than the plane.
D. Because our bodies gain speed before the plane.
根据规定，两个以上的自然人、法人或者其他组织可以组成一个联合体，以一个供应商的身份共同参加政府采购。联合体各方应当共同与采购人签订采购合同，就采购合同约定的事项对采购人承担连带责任。 ()
A. 正确
B. 错误
微信支付 
支付宝支付