[填空题]Ground stations have been set up in order to avoid the problem of double time lag.

[填空题]Ground stations have been set up in order to avoid the problem of double time lag.

[填空题]Observation posts have been set up alongside the most dangerous craters to ______.

[单项选择]Generations of Americans have been brought up to believe that a good breakfast is one of life’ s essentials. Eating breakfast at the start of the day, we have all been told, is as necessary as putting gasoline in the family car before starting a trip.
But for many people the thought that food is the first thing you have, in the morning is by no means a pleasure. So despite all the efforts, they still take no breakfast. Between 1977 and 1983, the latest years for which figures are available, the number of people who didn’ t have breakfast increased by 33 percent—from 8.8 million to 11.7 million—according to the Chicago-based Market Research Corporation of America.
For those who feel pain or guilt (内疚) about not eating breakfast, however, there is some good news. Several studies in the last few years indicate that, for adults especially, there may be nothing wrong with omitting breakfast. "Going without breakfast does not affect performance." said Arnold E. Bender, former profe
A. a study of the Chicago-based Market Research Corporation
B. one of life’ s essentials
C. latest figures of people who don’t eat breakfast
D. breakfast and human health

[单项选择]A modern city has been set up in_____ was a wasteland ten years ago.
A. what
B. which
C. that
D. where

[填空题]Those people who have set up correct goals will always be happy.

[单项选择]In order to prevent stress from being set up in the metal, expansion joints are fitted which ______the stress by allowing the pipe to expand or contract freely.
A. reclaim
B. reconcile
C. rectify
D. relieve

[简答题]We have been obliged to place our order elsewhere as your products are too dear for this market.

[填空题]Up till now the police have been trying to find out what the chairman of the. board of(direct) ______died of.

[填空题]What have Edmond Brothers been
They have been ______.