干空气的视相对分子质量为28.964。

题型:判断题

问题:

干空气的视相对分子质量为28.964。

考点:天然气净化操作工考试天然气净化操作工中级天然气净化操作工中级题库
题型:判断题

下列关于澳门位置的叙述,正确的是[ ]

A.位于珠江口西岸

B.毗邻广东省深圳市

C.西隔珠江口与香港相望

D.位于北温带

题型:判断题

I will always remember my mother’s last few days in this world.

On February 14th, 2000, my class went on a field trip to the beach. I had so much fun. When we returned to school, my teacher told me to go to the headmaster’s office. When I got into the office, I saw a police officer. Suddenly I realized something was wrong. The police officer told me what had happened and we went to pick my sister up. After that, we went to the hospital and waited. Time went slowly. Finally, we got to see our mother. It was terrible.

On the next day, the headmaster came and told my two teachers what had happened. I was taking a rest that day. I knew it had something to do with my mother. I kept thinking that she either died or had gotten better. How I wished that she had gotten better. When my teacher took me outside, my sister ran up to me. She started crying, "She’s gone. Teresa, mommy’s gone. She’s dead. " I couldn’t believe it. We jumped into the car and drove straight to the hospital. Most of my family were there. The silence was terrible. I knew I had to say goodbye.

Today when I look back, I still miss my mother very much, but I know that I will live. My mother was a p mother, who had the biggest heart. My mother was an angel walking on the earth. I will always remember her as living. When someone is asked who their hero is, they usually say someone famous, like Michael Jordan or Britney Spears. When someone asks me who my hero is, I tell them, my mother. My mother lives every day. That is what makes her at rue hero.

Who brought the writer the bad news that her mother was ill ()

A.Her sister.

B.The headmaster.

C.Her teacher.

D.The police officer.

题型:判断题

中国证券登记结算有限责任公司的网络投票系统基于( )。

A.互联网

B.上海证券交易所网络投票系统

C.深圳证券交易所网络投票系统

D.上海和深圳证券交易所网络投票系统

题型:判断题

正值经期,大便溏泄,脘腹胀满,神疲肢软,其辨证为()

A.气虚

B.肾虚

C.阳虚

D.脾肾两虚

E.脾虚

题型:判断题

画出电动机顺序启动控制PLC梯形图。要求:输入点:启动按钮:I0.0、停止按钮I0.1,输出点:电动机MA1:Q0.0、电动机MA2:Q0.1、电动机MA3:Q0.2,启动时间间隔1min,停止时间间隔30S。

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