配制500g 0.9%的生理盐水,不需要的仪器是( )
A:烧杯
B:量筒
C:玻璃棒
D:蒸发皿
— When did the factory develop the new machine?
— Last year.
I know a place __ we can have a big meal.
比一比再组词
延____ 状____ 钩____ 慢____ 准____
廷____ 壮____ 构____ 漫____ 唯____
庄____ 历____ 地____ 乱____ 掩____
压____ 厉____ 池____ 刮____ 俺____
3.7x+2.8x=8.45
x=____