根据汉语提示,完成句子 Good eating____(习惯) are very important. Healthy lifestyle helps me get good____ (成绩). He is____(躺)in bed to read a book.
I will____ (寄) Tom a postcard. If you are____(口渴的), you may have an apple.
某温度下HF的电离常数Ka=3.3×10﹣4 mol•L﹣1,CaF2的溶度积常数Ksp=1.46×10﹣10(mol•L﹣1)3.在该温度下将浓度为0.31mol•L﹣1的HF溶液与浓度为0.002 mol•L﹣1的CaCl2溶液等体积混合.下列说法正确的是( )
下列各句中,没有语病的一句是( )