CWC-632表示为双波纹管差压计,波纹管直径为55mm,采用圆图记录电机驱动,记录双参数,差压计()
A.无附加装置
B.带气变送装置
C.带积算器
D.带电变送装置
参考答案:C
有关糖皮质激素的叙述正确的是()
A.小剂量抑制体液免疫,大剂量抑制细胞免疫
B.可直接中和细菌内毒素和细菌外毒素
C.抑制胃酸分泌,促进胃黏液分泌
D.能兴奋中枢,出现欣快,激动等,甚至可诱发精神病
E.能明显增加血液中性粒细胞数,增强其游走吞噬功能
根据要求变换句型。
1. Can you drive? (作肯定回答)
________, I can.
2. It's a hand. (变为复数)
They are ________.
3. There're ten chairs. (对划线部分提问)
________ many chairs ale there?
4. Tony has got a big family. (变为否定句)
Tony ________ got a big family.
5. The Pleasant Goat (喜羊羊) is from China. (对划线部分提问)
________ is the Pleasant Goat from?