更多"A. She’s never been treated by Dr. "的相关试题:
[单项选择]A) She’s never been treated by Dr. Joanna. B) She’s been sitting in the waiting room too long.
C) Dr. Joanna isn’t the very good choice. D) She’d like to recommend a magazine to the man.
[单项选择]I’ve never been to Pingyao, but it’s the place（）
A. in which I’d like to visit
B. I most want to visit
C. that I want to visit it most
D. where I’d like to visit it
[单项选择]I’ve never been to Beijing, but it’s the place （）.
A. where I’’d like to visit
B. I most want to visit
C. in which I’’d like to visit
D. that I want to visit it most
[单项选择]I’’ve never been to Lhasa, but that’’s the city_______.
A. I’’d most like to visit
B. which I like to visit mostly
C. where I like to visit
D. I’’d like much to visit
[单项选择]I’’ve never been to Lansa, but that’’s the city______.
A. I’’ d most like to visit
B. that I like to visit mostly
C. where I like to visit
D. I’’ d like much to visit
[单项选择]Since the Hawaiian Islands have never been connected to other landmasses, the great variety of plants in Hawaii must be a result of the long-distance dispersal of seeds, a process that requires both a method of transport and an equivalence between the ecology of the source area and that of the recipient area.
There is some dispute about the method of transport involved. Some biologists argue that ocean and air currents are responsible for the transport of plant seeds to Hawaii. Yet the results of flotation experiments and the low temperatures of air currents cast doubt on these hypotheses. More probable is bird transport, either externally, by accidental attachment of the seeds to feathers, or internally, by the swallowing of fruit and subsequent excretion of the seeds. While it is likely that fewer varieties of plant seeds have reached Hawaii externally than internally, more varieties are known to be adapted to external than to internal transport.
The author of the passage is
A. discussing different approaches biologists have taken to testing theories about the distribution of plants in Hawaii
B. discussing different theories about the transport of plant seeds to Hawaii
C. discussing the extent to which air currents are responsible for the dispersal of plant seeds to Hawaii
D. resolving a dispute about the adaptability of’ plant seeds to bird transport
[填空题]
Supermarket shoppers have never been more spoilt for choice. But just when we thought traditional systems of selective farming had created the most tempting array of foods money can buy, we are now being presented with the prospect of genetically created strains of cabbages, onion, tomato, potato and apple.
It may not tickle the fancy of food purists but it fires the imagination of scientists, last week they discovered that the classic Parisian mushroom contains just the properties that, when genetically mixed with a wild strain of mushroom from the Sonora desert in California, could help it grow en masse while at the same time providing it with the resilience of the wild strain.
66. ______
"We have found a way of increasing the success rate from one to 90 per cent."
This is just one of the many products that, according to skeptics, are creating a generation of "Frankenfoods". The first such food that may be consumed on a wide s
