将0.4gNaOH和1.06gNa2CO3混合并配成溶液,向溶液中滴加0.1mol·L--1稀盐酸。下列图像能正确表示加入盐酸的体积和生成CO2的物质的量的关系是
答案:C
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小题1:Do you want to play with us?(同义句)
______ you ______ ______ play with us ?
小题2:My cousin and I live in the same room. (同义句)
I _______ a room ______ my cousin.
小题3:The building has 15 floors.(提问)
______ _______ floors _______ the building _______ ?
小题4:The boy in a red coat is my brother. (提问)
______ ______ is ______ brother?
小题5:Uncle Wang lives next to me . (同义句)
Uncle Wang is _______ _______.
自然循环热水采暖系统是依靠供水与回水的()差产生的压力进行循环的。
A.压力
B.密度
C.高度
D.长度