Judging from the context, the word 'stack'(Para. 2)most probably means______.
A．pile
B．store
C．clean
D．preserve

未分类题How long did it take to drink a full flute of lemonade?A．Four minutes.B．Five minutes.C．Seven minutes.D．Eleven minutes.

未分类题Which of the following would be the most appropriate title for the text?A．The Earliest MemoriesB．Earliest Memories, Good or BadC．The Power of Earliest MemoriesD．How to Recall Earliest Memories Better

未分类题According to Paragraph 1, we know that______.A．climate change can cause only three types of disastersB．we can wait until the climate become what it used to beC．human beings have very limited power to deal with climate problemsD．climate change makes people feel that they must learn to meet challenges

未分类题What can we conclude from Paragraph 1?A．Early memories are usually difficult for adults to forget.B．Early memories are significant for some aspects of adulthood life.C．Early memories can help children have a happy life.D．Early memories are mainly about preschool and cats.

未分类题From Paragraph 2, we get to know that photos and videos______.A．record most of parents' early livesB．can help children recall their early memories easilyC．usually take the place of children' s early memoriesD．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.