用“1、5、5、5”四个数字,中间可以添上“+、﹣、×、÷、( )”运算符号,顺序不限,每个数字只用一次,算出结果等于“24”.列式为 ____ .
将语句与图片匹配。
____( 1 )Vicky went to Hong Kong by plane.
____( 2 )Lily bought gifts for her father.
____( 3 )Alex took some pictures last Sunday.
____( 4 )Tom went swimming yesterday.
____( 5 )Sarah went camping with her friends.
A B C
D. E.
对某小型湖泊生态系统的能量流动情况调查结果如表表中甲乙丙丁为不同营养级.GP为同化量,R为呼吸消耗量.单位l02kJ/(m2.a):
GP
X
R
甲
12.6
2.9
9.7
乙
838.2
166.0
672.2
丙
0.9
0.4
0.5
丁
105.0
38.8
66.2
分解者
184.5
23.8
160.7
请分析表格回答下列问题.