室内温度是20℃,室外温度是-1℃,室内温度比室外温度高( )
A.19℃
B.-19℃
C.21℃
D.-21℃
20-(-1)=20+1=21℃.
故选C.
短文阅读。
Today is Sunday. It's Jack's birthday. Jack is thirteen years old. Jack's friends will come to his house
and they will have a party tonight. Jack will have a cake and candles and birthday presents. Jack is very
happy.
1. Is today Saturday?
____________________.
2. How old is Jack?
3. What will Jack's friends have tonight?
______________________________.
4. What will Jack have?
5. Is Jack happy?
1岁女婴因受凉后发热、咳嗽、气促3天,加剧1天而就诊。查体:体温39.2qC,脉搏180次/分,呼吸72次/分,极度烦躁,发绀,三凹征明显,双肺散在中、细湿啰音,心音钝,肝右肋下4cm。入院后急抽血查电解质,血清钾2.5mmol/L,血清钙2mmol/L。
该患儿入院第2天嗜睡、呕吐、抽搐,脑脊液压力稍高,细胞数10×10/L,糖、蛋白质、氯化物均正常。该患儿可能并发()
A.低镁血症
B.低糖血症
C.低钠血症
D.中毒性脑病
E.病毒性脑炎