当锚筋直径≤20mm时，宜采用（）。A．T形焊 B．压力埋弧焊 C．穿孔塞焊 D．手

城市规划行政体制的基本型制有几种

A．1

B．2

C．3

D．4

关于木结构，下列哪一种说法是不正确的（）

A．现场制作的原木、方木承重构件，木材的含水率不应大于25%

B．普通木结构受弯或压弯构件当采用原木时，对髓心不做限制指标

C．木材顺纹抗压强度最高，斜纹承压强度最低，横纹承压强度介于两者之间

D．标注原木直径时，应以小头为准；验算原木构件挠度和稳定时，可取中央截面

患者，男，33岁。因粘连性肠梗阻行胃肠减压半个月。今日出现四肢软弱无力。睾振明显。呼吸变浅、变慢。出现嗜睡症状。血生化检查：K⁺3.1mmol/L，Na⁺136mmol/L，Ca²⁺2.1mmol/L。血气分析：pH7.5HCO⁺³33mmol/L，PaCO²45mmHg.

该患者的酸碱失衡为（）

A.代酸合并呼碱

B.代碱合并呼酸

C.代谢性酸中毒

D.代谢性碱中毒

E.呼吸性碱中毒

以下不属于数据库系统(DBS)的组成的是

A．数据库集合

B．用户

C．数据库管理系统及相关软件

D．操作系统

W: You had a job interview yesterday, didn’t you How did it go
M: Not too bad, I guess. There were about 20 candidates competing for the sales manager’s job. And finally it was down to three of us, but the other two seemed better qualified.
Q: What does the man imply().

A. He is confident he will get the job.

B. His chance of getting the job is slim.

C. It isn’t easy to find a qualified sales manager.

D. The interview didn’t go as well as he expected.