内联系传动链和外联系传动链定义及区别。车螺纹、滚齿加工、普通车外圆、铣平面的进给传动

The airport in Boswell is twenty-one miles from the city. The banks and business offices are in the centre of the city. Read the notes from the diary of Mr Simpson.

12th. MON. Groups of 35 Australian students visiting Boswell---want cheap holiday. 13th. TUES. Mr and Mrs J. Grant arriving from Sydney --- need overnight stop at Boswell --- leaving early on the 15th by air. 14th. WED. Mr Nagashima, Tokyo, arriving for two days’ business trip. 15th. THURS. 65 German students need two days in a cheap hotel. 16th. FRI. 17th. SAT. Mr and Mrs Johnson, from New York City, arriving by air. 18th. SUN. 19th. MON. Mr and Mrs F. Ray, small inexpensive hotel needed for two days.

小题1:How far is it from the city to the airport in Boswell?

A．21km.

B．31km.

C．21m.

D．21 miles.

小题2:Mr Nagashima is from ________.

A．Australia

B．Japan

C．America

D．Germany

小题3:Mr and Mrs J. Grant will leave Boswell on ________.

A．Tuesday

B．Wednesday

C．Thursday

D．Friday

小题4:How many travelers will Mr Simpson meet in just over a week?

A．107.

B．65.

C．35.

D．131.

小题5:Mr Simpson is probably ________.

A．a headmaster	B．a travel manager
C．a traveller	D．an engineer