1.This small sea usually catches cold.
2.He should quit smoking.
3.After meal you shouldn't lie on the bed.
4.Do not eat too many sugar,have no advantage to your tooth.
5.That infant grew four tooths now.
6.- How about go shopping?
- Good idea.
Physics:
1.Measure an instrument toward the bottom of sea perpendicularity to shoot a wave with the super voice,receive to return to wave through 4 ses.Here the bottom of sea is much deep?
2.An automobile along one highway that is straight,drive over against a mountain precipice,the speed of the automobile is 25 meter/ ses,the driver 鸣 whistle after,the 5 ses hears the echo.Ask the automobile be apart from how far is the mountain precipice now?
The format of the physics imitates the format of build the underneath;( is the format of a solution)
Solution:from v= the s/ t get( several several cents I will not beat)
S= vt= the 1500 ms/ s X( multiplication sign)2.5 ses/2( several several cents I will not beat)
= The 1500 ms/ s X( multiplication sign)1.25 ses
=1875m