邓 * * 理论博大精深,是中国改革开放建设现代化的重要保证,解放思想,实事求是是邓 * * 理论的()。
A、基石
B、精髓
C、核心
D、根本
参考答案:B
-Why have you decided on the countryside for your holiday?
-Because we are there is lots of clear, fresh air there.
A.so many
B.much
C.many
D.several
当砂类土或砾类土的不均匀系数Cu同时满足下列( )条件时,则定名为良好级配砂或良好级配砾。
A.Cu>5,Cc=1~3
B.Cu≥5,Cc=1~3
C.Cu>5,Cc=1~5
D.Cu≥5,Cc=1~5