下列加横线成语使用正确的一句( )
A:他这样做,自以为很稳妥,一点也听不进别人的建议,其实是如履薄冰,危机是显而易见的。
B:经过细心的考察和认真的研究,专家们对这个名胜区的山川结构、地形地貌已一目了然。
C:黄山之美绝无仅有。描写黄山的诗文不少。在这些作品中,《黄山记》是一篇自出机杼的佳作。
D:近几年,他川经营养殖场赚米的钱帮乡里兴建了10所希望小学,人们都称赞他是位从善如流的企业家。
下列关于城市的叙述正确的是( )
I am an English girl. My name is Mary. I’m twelve. My dad and mom are English teachers. I have a brother(哥哥). His name is Tom and he is thirteen years old. We are in China now. We are in Beijing No. 4 Junior High School. Tom is in Class 4, Grade 7 and I am in Class 9, Grade 7. I have a dog. My dog looks strong. It has a big mouth and two big black ears. We have many(许多) Chinese friends here. They are good.
145吨=____千克48分=____时