【判断题】近似数的有效数字个数越少,则该近似数的精度就越高。
【单选题】某单代号网络计划如下图(时间单位:天),其计算工期为(2016一级建造师考试真题解析)天。
【简答题】A tiny start can ___________in the darkness.
【单选题】Which of the following statements is NOT meant by the author,according to the second paragraphy
A.
Wood was the fuel of choice before coal.
B.
The use if coal is declining.
C.
Coal is the most environmentally unfriendly fuel next to oil.
D.
Coal reserves are plentiful and will be likely to become the major fuel of choice。
【多选题】给孩子提供丰富的音乐活动的体验包括( )