一节体育课平均脉搏应维持在()
A.80~100次
B.1001~20次
C.125~155次
D.130~170次
E.140~180次
参考答案:D
---Mike, you know, I have read the book twice!
---______? I have read it so many times that I can recite it now.
A.How come
B.What do you reckon
C.What for
D.So what
读“我国四个城市降水柱状图”,回答下列各题.
(1)四个城市各月柱状图表明,我国东部地区的降水量由______向______逐渐减少.(填南或北)
(2)四个城市降水的季节分配都______(填均匀或不均匀),降水集中在______季.
(3)南方雨季开始______,结束______(填早或晚);北方雨季开始______,结束______(填早或晚).南方雨季比北方雨季______(填长或短).
(4)我国东部地区,雨季开始和结束的迟早主要是由______季风(填冬或夏)的进退决定的.