A:党的性质和宗旨
B:党的领导与执政地位
C:国内形势与国际环境
D:人民拥护与历史选择
Look at that girl _______ name is Lucy.
The island is quite hot all year round, because it's ___________ the equator.
如图为A、B、C三种物质的溶解度曲线.
(1)t2℃时,A、B、C三种物质的溶解度由大到小顺序是____ ;
(2)m点的含义是:____
(3)20℃时,将30g A物质放入50g水中,充分搅拌,所得溶液质量为 ____ g;
(4)t2℃时,将等质量的A、B、C饱和溶液分别降温到0℃时,析出溶质最多的是____ ,无溶质析出的是____ .
This question is so hard that very ______ students can answer it.
已知函数f(x)=sin(πx﹣π3),若函数y=f(asinx+1),x∈R没有零点,则实数a的取值范围是____