问题
单项选择题
PM2.5是指直径（）
A.<2.5μm的颗粒物
B.>2.5～<10μm的颗粒物
C.>2.5～<5μm的颗粒物
D.=2.5μm的颗粒物
E.≤2.51μm的颗粒物
答案
参考答案：E
搜题请搜索小程序“爱下问搜题”
PM2.5是指直径（）
A.<2.5μm的颗粒物
B.>2.5～<10μm的颗粒物
C.>2.5～<5μm的颗粒物
D.=2.5μm的颗粒物
E.≤2.51μm的颗粒物
参考答案：E
| 完形填空。 | ||||
| My relationship with my father has an enormous impact on my life. Overall, I 1 a very great sense of love and well-being when I remember Dad. He was 2 to providing the best he could for us. When 3 , I was a bit in awe of Dad. I loved him dearly but I was also a little afraid of him; I was afraid of 4 him because I knew he could get angry and shout and this 5 me. Dad would scoop us up (抱起) and hug and 6 us. He was loud and larger, in happiness as well as when 7 . He had a great sense of humor. 8 he was not a great reader, I do remember him reading Tom Sharpe books and 9 raucously (嘶哑地) to himself in the process. Dad was enormously 10 of his family. He praised us to anyone who would listen and 11 in front of us."I can take my kids anywhere; they're always well 12 ." As an adult, I would turn to Dad 13 advice and support and he was always there. The main 14 I recall is that whatever age I was, there was always a strong, powerful hug and kiss 15 I saw him. It is over seven years since Dad died. I still 16 his voice if I imagine certain things. But even without hearing his voice, the most 17 thing is that he is still with me every day of my life. I do no have identical (相同的) 18 to him, however, I know that from him, I learned strong values. Dad taught me to value and respect money, to be 19 with it and not to want too much or be too 20 for material things … | ||||
|
