挡板密封风的主要作用是防止()。
A、烟气挡板结露腐蚀;
B、原烟道腐蚀;
C、烟气泄漏;
D、烟气减温。
参考答案:C
句型转换。
1. There is a key and some books on the desk. (变为同义句)
A key and some books ______ ______ ______ ______.
2. Let's see the nice garden. (变为同义句)
Let's ______ ______ ______ ______ the nice garden.
3. The girl is eating breakfast. (变为否定句)
The girl ______ ______ breakfast.
4. People are talking about the good news.(就画线部分提问)
______ ______ people ______ about ?
女性,33岁,发热1周,手指尖及甲床有出血点,面颧部及鼻梁有皮损。血压148/90mmHg,尿蛋白(+++),尿沉渣RBC满视野/HP,HGB76g/L,A:NA1:320()
A.反应性关节炎
B.干燥综合征
C.系统性红斑狼疮
D.蝶形红斑
E.幼年性类风湿关节炎全身型(Still病)