汽车在怠速和发动机温度正常时，扫描检测仪数据如下，ECT传感器为0.38V，IAT传感器为2.00V，发动机转速为750r／min，HO2S为0.8V，VSS传感器为0mile／h，蓄电池电压为14.2V，TPS传感器为0.6V，MAP传感器为1.2V，1AC计数为30，TCC断开，EGR断开，EVAP接通，MIL接通，开环，燃油泵继电器接通。技师甲说O2部分可能有故障；技师乙说从EVAP电磁铁至PCM间的接地导线可能错误搭铁。试问谁正确？（）
A.只有甲正确。
B.只有乙正确。
C.两人均正确。
D.两人均不正确。
参考答案：B
| Chose the best answer from A、B、C or D to complete the passage. |
| Around the world, people have different ideas about what good manners are. When you go go restaurants in different parts of the world, it's 1 to know the right and wrong things to do. For example, in China it's OK to 2 a lot of noise in a restaurant. In fact, if a restaurant isn't noisy and 3 , you may think there's something wrong with it. However, in many western countries, restaurants are 4 palces. If a table is too loud, other people who are eating there might even 5 to the owner of the restaurant. Paying the bill is also different from country to country. In China, one person usually pays for 6 . In western countries, one person pays if he or she is entertaining clients, but 7 friends eat together, they usually share the cost. This is called "Going Dutch" Also, when westerners pay the bill, they ususlly leave some money for the 8 . This is called "leaving a tip." Leaving a tip is thought to be polite. In the US, it's 9 to leave tips of 10%, 15% or 20% of the bill. Which is decided by how good the service is. Good waiters can make a lot of money! The way people eat food is different in the world, but you can 10 the same kinds of food in many countries. Chinese and Italian food, for example, are popular all over the world. |
| ( )1．A．popular ( )2．A．cause ( )3．A．lively ( )4．A．noisy ( )5．A．shout ( )6．A．everybody ( )7．A．until ( )8．A．gatekeeper ( )9．A．terrble ( )10．A．invent | B．difficult B．keep B．friendly B．quiet B．explain B．nobody B．when B．seller B．common B．discover | C．important C．hear C．lucky C．busy C．complain C．somebody C．unless C．waiter C．serious C．prefer | D．enjoyable D．make D．polite D．clean D．speak D．none D．since D．visitor D．unusual D．find |