From Paragraph 2, we get to know that photos and videos______.
A．record most of parents' early lives
B．can help children recall their early memories easily
C．usually take the place of children' s early memories
D．can' t play an important role as early memories do

未分类题One of your pen pals Grace will shortly be visiting your city. For some reasons, you cannot manage to meet him her at the airport on time. Write a letter to 1)apologize and explain the reason, and 2)tell him her your plan. You should write about 100 words on the ANSWER SHEET. Do not use your own name. Use 'Li Ming' instead. Do not write your address.(10 points)

未分类题What can we infer from the text?A．Climate change has caused great damage to most countries in the world.B．To stop climate change will greatly improve the development of the world.C．It is urgent for human beings to take measures to prevent climate change.D．Human beings should build man-made highlands to avoid floods.

未分类题Climate change may cause the following disasters EXCEPT______.A．floods will erode highland soilB．coastal cities will be threatenedC．low-lying nations will be affected by higher sea levelD．wetland and rain forest ecosystems could be in great danger

未分类题What does the last paragraph imply?A．Human beings are vulnerable groups in the world.B．Human beings have no ability to reduce emissions.C．Human beings are preparing for the coming risks.D．Pollutions may be the major cause of climate change.

单项选择题前列腺癌的特点正确的是()

未分类题What is the author s attitude toward genetically modified crops?

单项选择题我国第一部本草专著是：()

未分类题In 2050, one of the biggest challenges of mankind is______.A．to provide food for at least 9 billion peopleB．to develop more cultivable landC．to produce treble food on roughly the same area of landD．to prevent droughts and floods

未分类题Which of the following is NOT true according to Paragraph 4?A．GM crops boost the output.B．GM crops are helpful to the wild habitat.C．GM crops are more resistant to various disasters.D．GM crops could vastly increase the productivity of farming.

未分类题Which of the following is NOT true according to Paragraph 2?A．Teaching ability is the most important factor in teachers' promotion.B．Other subjects have the same problems with economics.C．Morden universities pay more attention to research than teaching.D．Many teachers regard teaching as an obstacle in their work.

未分类题It can be inferred from the passage that______.A．today it' s still hard for a man to accept a successful wifeB．today the equality between couples is still importantC．women are more open-minded in the marriage bondsD．the ego of men is stronger than women' s

未分类题According to the passage, e-cigarettes______.A．supply smokers with nicotine more safelyB．help the fastest e-cigarettes-adopter gain sales 1 billion timesC．are mastered by all tobacco firms as a new technologyD．have lured smokers from the big tobacco brands to startups

未分类题It can be inferred from the passage that the Lancet is a journal on______.A．evolutionB．medicineC．economyD．sports

未分类题The phases 'war chests'(Para. 5)most probably means______.A．spaceB．fundsC．networksD．competitors

未分类题The smokers attitude toward the consumption of e-cigarettes is______.A．pessimisticB．uncertainC．optimisticD．doubtful