Cho hình vẽ, biết DE // BC, EH // AB và BC = 12. Độ dài x, y, z trong hình lần lượt là:

Cho tam giác ABC có AB = 8 cm, AC = 12 cm, điểm D thuộc cạnh AB sao cho AD = 5 cm. Kẻ DE // BC (E ∈ AC). Độ dài EC là

Cho hình vẽ. Khẳng định nào sau đây là sai?

Cho hình vẽ, DE // AC. Độ dài x trong hình vẽ là:

Cho tam giác MPK có N, Q lần lượt thuộc các cạnh MP, MK sao cho NQ // PK và MN = 1 cm, MQ = 3 cm, MK = 12 cm thì

Cho hình vẽ, biết HK // BC. Độ dài x bằng:

The purpose of the passage is to _____.

Lake Vostok is potentially important to scientists because it______.

The word “microbes” in paragraph 3 could best be replaced by which of the following?

It can be inferred from the passage that the ice would not be flat if______.

All of the following are true about the 1970 survey of Antarctica EXCEPT that it______.

Which of the following is closest in meaning to “frigid” in paragraph 1?

What is true of Lake Vostok?

The word “hidden” in paragraph 1 is closest in meaning to ______.

Which of the following is NOT true?

In the second paragraph, the pronoun "them" refers to which of the following?

Which of the following statements is not TRUE about Thanksgiving ______?

All of the following statements are mentioned EXCEPT ______.

According to the passage, Pilgrims are ______.

In the United States, Thanksgiving is ______.

What is the purpose of the passage?

Further on, children who have previously travelled abroad with their parents are usually more prepared for a study (165)___________ in an English-speaking country on their own than those who have not.

A. travel

A. turned

(163)___________, even adult learners find the experience of travelling to a strange country and encountering people who speak an incomprehensible language challenging?

A. open

A. granting

The word “Academics” in the title mostly means___________

According to the author, the fact that students have more time for leisure is a proof that ______.

The word “focus” in the last paragraph can be replaced with__________.

The author finds it hard to point out___________.

According to the author, the fact that more full-time students are working for pay________.

All factors considered, college now seems___________ .

Which of the following is used by the author as the proof of academic pressures being lower than before?

Research studies have shown that pressures put on students nowadays are __________.

Why does the author mention bees, ants, toads, and turtles in the last paragraph?

In the fourth paragraph, the pronoun "it" refers to which of the following?

The author mentions all of the following at tributes that enable a homing pigeon to return home EXCEPT ____________________.

According to the passage, what is the difference between a homing pigeon and an ordinary one?

In paragraph 2, when the author states that the owners "anxiously watch the sky" there is the implication that the owners _______________________.

According to the passage, what happens to homing pigeons when they are about a month old?