Most Polar seals retreat to open water during the winter, but a few types have learn to survive on and under the ice all year round.

Câu hỏi liên quan

• The early periods of aviation in the United States was marked by exhibition flights made by individual fliers or by teams of performers at country fairs

• The American anarchist Emma Goldman infused her spirited lectures, publishes, and demonstrations with a passionate belief in the freedom of the individual.

• I would have gone with him to Washington except I had had no time

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• Unexploded bombs buried deep in the ground have been found in the construction site opposite of the City Hall

• Jessamyn West’s first and most famous novel, the friendly persuasion, describes the life of the Quaker farmed family in the mid-1800’s.

• Floods, earthquakes and other natural disaster happen all over the world, causing death and material damage.

• .......... chair which you are sitting in is broken. 

• The office …………on the weekend.

• Rita is studying........... English and ...........math this semester. 

• He has been hoped for a raise for the last four months, but his boss is reluctant to give him one.

• Public health experts say the money one spends avoiding illness is less than the cost to be sick

• The purpose of traveler’s checks is to protect travelers from theft and accidental lost of money.

• ............. winter is usually cold, but .................. winter of this year is warm. 

• From archeological evidences, we know that Egyptians were highly organized and civilized. Moreover, they were skillful in using crafts.

• The Secret Garden, it is a book written years ago for children, has become popular again among adults in the film version.

• Each chemical element is characterized to the number of protons that an atom of that element contains, called it atomic number.

• What did you eat for........... breakfast this morning. 

• There is evidence that the caribou originated into North America and crossed over all land bridge into Asia and evolved into the Old World’s reindeer.

• You don't know her, _    ?

• During his speech in Congress, the President stressed the importance of good education for the well-being of generation to come