当前位置: X题卡 > 所有题目 > 题目详情

We do not know when man first began to use salt, but we do know that it has been used in many diffe...

查看本题答案

你可能感兴趣的试题

walk  walks  to walk  walked  
where  when   what  which  
who  it  when  whom  
when we can; is given    when can we will be given   if we can; is given    when we can; will be given  
when we started    when did we start    when will we start    when we will start  
who    it    when    whom  
the, the    a, the    a, a    /, the  
what can we do it    when can we do it    where can we do it    where we can do it  
when we   when do we    when are we going to    when we are going to  
exposed  having exposed   being exposed  to be exposing  
send for    send up    send off    send out  
when can we do it    when we can do it   where can we do it    where we can do it  
what will we do    when we will start    where they went    how will they go there  
what can we do it    when can we do it    where can we do it    where we can do it  
right and left  fast and slow  hard and easy  up and down  
Brains of the more-educated people may become more contracted when they get aged  Education may do harm to people's brains  More educated people may suffer from brain tissue loss  The less educated can resort to more cognitive reserves when aged  

热门试题

更多