阅读理解。
The management and staff are happy to welcome you and will do all they can to make your stay an
enjoyable one.
MEAL TIMES
Our overnight charge includes a continental-type breakfast.
Breakfast: 7:30-9:30 a. m.
Lunch: 12:00-2:00 p. m.
Afternoon tea: 4:00-5:30 p. m.
Dinner: 7:00-9:15 p. m.
Meals can be served in rooms at a small extra charge. We regret that meals cannot be served outside
these times.
Light refreshments including tea, coffee, biscuits and sandwiches, can be served in rooms between
10:00 a. m. and 11:00 p. m. except during the meal times listed above. Cold drinks are available in the room
refrigerator.
ROOM CLEANING
Please hang the appropriate sign on your door handle if you do not wish to be disturbed. It will be easier
for the maids if you can leave the room temporarily at any time between 9:30 a. m. and 4:00 p. m. VALUABLES
We are not responsible for the loss of money, jewellery, or other valuables unless they are kept in the
safe and signed for by the manager.
DEPARTURES
Please inform receptionists of your intended leaving before 9:30 a. m. of the day concerned and leave
the room by noon to allow for its preparation for incoming guests. If circumstances (情况) require, luggage
can be left in the charge of the hall porter.
A SPECIAL REQUEST
We would respectfully suggest that in consideration of the comfort of other guests, the volume of radios
and televisions should be turned down after 11:00 p. m.
1. Meals can be served _______.
A. outside the room at 3:00 p. M.
B. in the dining-room at 6:00 p. m.
C. in the dining-room from 7:30 a. m. to 9:15 p. M.
D. in rooms at 9:00 p. m.
2. If you intend to leave the room tomorrow, you may leave at any of the following hours except _______.
A. 3:00 p. m.
B. 12:00 a. m.
C. 10:00 a. m.
D. 11:00 a. m.
3. Where is this notice most likely to be found?
A. At restaurants.
B. In shops.
C. In hotels.
D. In the newspapers.
4. What can we conclude from the last paragraph?
A. You should respect the other guests.
B. You are not allowed to use radios and televisions.
C. You shouldn't make the radios and televisions too loud after 11:00 p.m.
D. To comfort others, you should turn off radios and televisions after 11:00 p.m.
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，与水平面的夹角为θ，导轨电阻不计。虚线空间内分布感应强度为B的垂直于导轨平面向上的匀强磁场。导轨的下端接一定值电阻R，上端通过导线与一对竖直放置的平行金属板相连接，两板间距为d，其间固定着一光滑绝缘直杆，它与平面也成θ角，杆上套一带电小球。当一电阻也为R的光滑导体棒ab沿导轨以速度v匀速下滑时，小球恰好能静止在绝缘直杆上。则以下说法正确的是 （ ）
