问题
单项选择题
所谓有效循环血量()
A.全身总血容量
B.:单位时间内通过心血管系统进行循环的血量
C.:维持正常代谢的血容量
D.:在微循环内的总血量
E.包括停滞在毛细血管内的血量
答案
参考答案:B
所谓有效循环血量()
A.全身总血容量
B.:单位时间内通过心血管系统进行循环的血量
C.:维持正常代谢的血容量
D.:在微循环内的总血量
E.包括停滞在毛细血管内的血量
参考答案:B
完形填空。 | ||||
That summer, my parents shook my entire world and turned it upside down when they told me they were getting a divorce (离婚). I couldn't 1 that our family was going to break up. Though I always knew my parents weren't very happy and they often 2 with each other, I 3 wanted my family to stay the same. My life changed 4 after my parents' divorce. My mother and I moved into a small apartment across town 5 my father and brother, Bill, stayed in our house. I now became a(n) 6 whenever I went to see my dad and Bill on the weekends. And immediately I had my soon-to-be stepfather, Dan, 7 I showed no interest. I was clearly 8 , especially after Dan and my mother married and I realized that there was 9 that things could change back to the way they were. Even though I 10 all Dan's attempts to get to know me and wasn't very nice to him, he never gave up on me. Gradually, I began to 11 him. I realized that we actually had some things 12 , especially when it 13 films and TV shows. We spent a lot more time together watching TV. That gave us a chance to communicate with each other. 14 still, Dan showed much more interest in me than my own father. Dan was always around when I needed advice 15 school or making friends. I began to warm up to Dan. The three of us 16 go out to eat and take short trips. 17 , I discovered that I had the happy family again that I had always wanted. I now realize it was 18 of my parents to get the divorce. Their breakup was the 19 thing to us all. My father also found happiness- he remarried and had 20 child, my half-sister, Michelle. That year when I was 13, I learned an important truth-change is not always the worst thing that can happen. Sometimes, it is just what we need the most. | ||||
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