—In order to give more chances to the talented students, an dancing competition ______ soon.
—That's great!
秋思
张籍
洛阳城里见秋风,欲作家书意万重。
复恐匆匆说不尽,行人临发又开封。
不等式组 {x+1≥2x2≤1 的解集是( )