更多"Some crops are relatively high yiel"的相关试题:
[单项选择]Some crops are relatively high yielders and could be planted in preference to others to ______ the food supply.
A. enhance
B. curb
C. disrupt
D. heighten
[单项选择]That genetically-modified crops could have harmful effects that can be deduced from the fact that ______.
A. cross-breeding is a natural process
B. hybrids are generally more successful at breeding than natural plants
C. gene movement between cultivated plants and wild ones is inevitable
D. new research shows that genetically-modified plants are likely to develop into weeds
[单项选择]A majority of HDTV consumers could not enjoy high-quality digital pictures because ______.
A. they did not tune in to the right channel
B. they did not install the system
C. the market retailers created the confusion on purpose
D. the manufacturers did not have a uniform standard for their sets
[单项选择]A: Do you think you could lend me some of your recordsB: Until whenA: Oh, just over the holidays.B: I'm not sure. ______
[单项选择]On the top of some very high mountains snow ______ throughout the year.
A. insisted
B. persevered
C. persisted
D. kept
[单项选择]Some scientists believe that global warming could（ ）.
A. modify ocean currents.
B. change wind directions in the polar regions.
C. reduce the influence of currents.
D. increase wind speed.
[单项选择]We learned from the show that some insects could be used as medicine, ______ ants and bees.
A. in case of
B. such as
C. just like
D. as an example
[单项选择]Speaker A: Could you give me some advice on how to prepare for the final Speaker B: ________
[单项选择]Some teachers believe that students who score high in________ needs tend to make higher grades in college than those who score low.
A. acknowledgement
B. achievement
C. advertisement
D. announcement
[单项选择]Some of the stories were really more than could be believed.
A. 有些故事实在不敢相信。
B. 有些故事远远超过可以被相信的程度。
C. 这些故事中有一些真的比相信还多。
D. 这些故事真的是很难被相信。
[单项选择]Simon: Excuse me, but could you give me some change Joan: Let me see. ______. Simon: That'll be fine. I only want to make a phone call. Joan: Here you are.
[单项选择]In some cases, recycling could be hazardous to the environment if special precautions are not taken because ______.
A. industrial emissions are sometimes created in the process
B. chemical waste is sometimes produced as a result
C. a great deal of energy is expended to create new products
D. there are a lot of bacteria in waste things
[单项选择]- Could you lend me some money, Jack
- Sorry, Mike. I myself can't earn enough to ________.
A. make the ends meet
B. make ends meet
C. keep the ends meet
D. keep ends meet
[单项选择]Although he offered her a high salary, he could not ______ her to accept a position with his firm.
A. advise
B. persuade
C. conceive
D. convince
[单项选择]--Could you give me some ink--Sorry, I haven't ______ left myself.
A. many
B. much
C. few
D. little
[单项选择]My money______. Could you please lend me some
A. has run out of
B. has run out
C. was run out of
D. has been run out
[单项选择]Some language students reach a high ______ of competence in communication.
A. level
B. note
C. grade
D. mark
[单项选择]Crops grew smaller in production in South Carolina mainly because ______.
A. demand for cotton had decreased
B. crops became varied
C. planters grew richer
D. soil was less productive
