Which of the following Chinese characters refers to herbaceous plants such as weeds and grains?
Which of the following Chinese characters refers to herbaceous plants such as weeds and grains?
Weeds are an index to the character of the soil. A: obstacle B: indicator C: opponent D: emigration
Weeds are an index to the character of the soil. A: obstacle B: indicator C: opponent D: emigration
As a legend goes, Shennong was once affected by 72 poisonous weeds within two days and he drank tea as the antidote.
As a legend goes, Shennong was once affected by 72 poisonous weeds within two days and he drank tea as the antidote.
To ________ weeds is not only to destroy their visible parts but also to pull them out by the roots. A: extricate B: extirpate C: extract D: export
To ________ weeds is not only to destroy their visible parts but also to pull them out by the roots. A: extricate B: extirpate C: extract D: export
Unseasonable (不合季节的) temperatures cause cherry ______________ to come out ahead of times. A: blossoms B: plant C: plants D: weeds
Unseasonable (不合季节的) temperatures cause cherry ______________ to come out ahead of times. A: blossoms B: plant C: plants D: weeds
To ________ weeds is not only to destroy their visible parts but also to pull them out by the roots. A: extricate B: export C: generate D: extirpate E: extract
To ________ weeds is not only to destroy their visible parts but also to pull them out by the roots. A: extricate B: export C: generate D: extirpate E: extract
What is the main problem caused by the usual way of plowing A: The crop’s blooming period is delayed. B: The roots of crops are cut off. C: The top soil is seriously damaged. D: The growth of weeds is accelerated.
What is the main problem caused by the usual way of plowing A: The crop’s blooming period is delayed. B: The roots of crops are cut off. C: The top soil is seriously damaged. D: The growth of weeds is accelerated.
New research raises new concerns that altering crops to withstand such threats may pose new risks from （） the weeds themselves. A: anything but B: other than C: more than D: none other than
New research raises new concerns that altering crops to withstand such threats may pose new risks from （） the weeds themselves. A: anything but B: other than C: more than D: none other than
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
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
Which thematic progression pattern has been used in this paragraph? Hemp’s environmental credentials are indisputable. It grows better in organic systems than in conventional ones. It smothers weeds and controls pests, clearing the land for other crops. It improves the structure of the soil, with strong roots to prevent erosion. If processed in the field, it returns nutrients to the land and purports to ‘clean up’ soil contaminated with heavy metals. It is one of a minority of textile-fibre crops that can be grown in temperate climates. So why, given its potential, is so little hemp used today? (New Internationalist, June 1998, p. 14)
Which thematic progression pattern has been used in this paragraph? Hemp’s environmental credentials are indisputable. It grows better in organic systems than in conventional ones. It smothers weeds and controls pests, clearing the land for other crops. It improves the structure of the soil, with strong roots to prevent erosion. If processed in the field, it returns nutrients to the land and purports to ‘clean up’ soil contaminated with heavy metals. It is one of a minority of textile-fibre crops that can be grown in temperate climates. So why, given its potential, is so little hemp used today? (New Internationalist, June 1998, p. 14)