1049000000和954300000省略“亿”后面的尾数后都约是10亿.______.(判断对错)
1049000000≈10亿;
954300000≈10亿;
故答案为:√.
My friend came to school _________,I told him I ______about her.
A.calm; add up
B.loose; face to face
C.upset; was concerned
D.entire ; set down
潮湿:干燥( )
A.晴朗:刮风
B.日出:日落
C.高温:低温
D.黎明:黄昏