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【多选题】
磺化产物的常见分离方法有( )等。A.
加水稀释法
B.
直接盐析法
C.
中和盐析法
D.
脱硫酸钙法
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【简答题】激光治疗的禁忌症( 5分)?
【简答题】非线性调制包括（）和（）。
【简答题】听对话选择正确答案 1. What would the boy like to drink? A. Tea. B. Milk. C. Drink and milk. 2. When does the boy get up on Sundays? A. At six. B. Later than six. C. Earlier than six. 3. Who has short hair? A. ...
【简答题】A: What should parents do after they have sent off their children to college? Any advice? B: Well, empty nest(空巢) doesn’t have to mean feeling empty. Do not be overly 关心 with their children’s success....
【单选题】A 1500 page print job was sent to the "pcl" queue. The job was running for several minutes before it was determined that the job was not needed. What can be done to delete the job？（）
A.
kill 201
B.
cancel 201
C.
disable pcl
D.
rm /var/spool/lpd/STDIN.27648
【单选题】刘女士，27岁。宫颈中度糜烂、颗粒型，行宫颈激光治疗，护士对其解释护理措施时，错误的是
A.
2个月内禁止性生活
B.
术后1～2周有少量出血
C.
三次月经干净后医院复查
D.
治疗前要常规做宫颈刮片检查
E.
有急性生殖器炎症者禁忌做物理治疗
【简答题】巳知二进制信息码的一段为1011011100110001,设起始参考码元为0,用相邻码元的极性变化表示“1”码,而极性不变表示“0”,则相应的差分码为____________________。
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