PLC从结构上分为整体式和模块式，下列PLC属于模块式是（） A.S7-200 B.

患者，男性，50岁，发热、右季肋部疼痛2天，白细胞增高，超声检查右肾体积增大，其上部见一形态不规则低回声区，范围约46mm×43mm，边界不清楚，病灶内可见小片液化区。最有可能的诊断是（）

A.急性肾盂肾炎

B.慢性肾盂肾炎

C.急性肾小球肾炎

D.慢性肾小球肾炎

E.肾脓肿

对冠心病有确诊价值的诊断方法是（）。

A.X线检查及临床化验

B.冠状动脉造影

C.超声心动图

D.心电图及心电图负荷试验

E.心功能检查

  If you don’t want people to know too much about you, then you had better keep your fridge contents secret according to a British market research document released         Finally, a fridge filled with nothing more than a bottle of white wine and some sparkling mineral water implies an owner who is single, lives in a big city and enjoys the finer things in life．The fridge is empty because this person regularly eats in restaurants．

小题1:We can know from the first two paragraphs that _________________．

A．some researchers are fond of staring at other people’s fridges

B．people don’t want others to know about their secrets

C．the food you put in the fridge has something to do with your personality

D．there are mainly five kinds of lifestyles among British people小题2:According to the passage, people who belong to “food faddies” ____________．

A．don’t care much about money when buying things

B．will try their best to stay healthy

C．often stay up late to finish their job

D．prefer to ask others about what to do next小题3:What will those who often dine out put in the fridge?

A．All kinds of food they like．

B．Food rich in vitamins．

C．Fruit, vegetables and meat．

D．Only something to drink小题4:What might be the most suitable title for the text?

A．Keep your fridge a secret

B．You are what’s in your fridge

C．What to put in the fridge?

D．Be careful about your fridge

声束与缺陷主反射面所成的角度叫做：（）

A、入射角； 

B、折射角； 

C、缺陷取向； 

D、上述三种都不对。