从296里连续减去8，减去______次后还剩16．
（296-16）÷8，
=280÷8，
=35；
答：减去35次后还剩16．
故答案为：35．
用所给词的适当形式填空
It was September 30th. When Tom 1 (wake) up, it was 8:00. He got up as 2 (quick) as possible. He 3 (have) no time to eat breakfast, so he went to school 4 (with) breakfast. When he got to the
school gate, the gate was 5 (close). He realized that it was Sunday. What a careless boy!
在天然气管道输送过程中，严格监视硫化氢的含量，硫化氢分析仪的测量范围一般要求（）ppm。
A、10
B、14
C、18
D、20
