[填空题]This is the(twin)（）room.

[填空题]双胎输血综合征（twin to twin transfusion syndrome, TTTS）：发生在 _________ 羊膜囊 _________ 绒毛膜 _________ 卵双胎，两胎儿体重相差 _________ ≥％，血红蛋白相差 _________ ＞g/L，提示TTTS

[单项选择]Identical twin sisters have led British scientists to a breakthrough in leukemia research that promises more effective therapies with fewer harmful side-effects.
A. administers
B. nurtures
C. inspires
D. ensures

[单项选择]What are the names of the twin girls
A. Alexander and Malia.
B. Winston and Helly.
C. Alexander and Helly.
D. Alexander and Jones.

[单项选择]

The Petronas Twin Towers in Kuala Lumpur in Malaysia were completed in 1998. Each tower is 452 meters high and has 88 floors. Designed to serve all floors, the four executive lifts (公务电梯) in each tower transport passengers from the underground car park to the top floor in 90 seconds. The towers are joined 170 meters up by a two-level bridge on the 41st and 42nd floors.
The Sears Tower in Chicago in the United States was the tallest building in the world for more than 20 years. Completed in 1973, the tower is 442 meters high. It has 110 floors and 14771 square meters of space. Its non-stop lift goes up to the top floor at a speed of 487 meters per minute.
At 421 meters high, Jin Mao Tower in Shanghai is the tallest building in China. Completed in 1999, it has 88 floors and has the world’s highest hotel rooms. This building was made to be strong — it can stand typhoon(台风) winds of up to 200 kilometers per hour.
Burj Dubai is a m
A. A flat floor.
B. A non-stop lift.
C. A long passage.
D. A two-level bridge.

[填空题]Identical twin girls are more likely than boys to have learning problems.

[单项选择]

E

The Petronas Twin Towers in Kuala Lumpur in Malaysia were completed in 1998. Each tower is 452 meters high and has 88 floors. Designed to serve all floors, the four executive lifts(公务电梯) in each tower transport passengers from the underground car park to the top floor in 90 seconds. The towers are joined 170 meters up by a two-level bridge on the 41st and 42nd floors.
The Sears Tower in Chicago in the United States was the tallest building in the world for more than 20 years. Completed in 1973, the tower is 442 meters high. It has 110 floors and 14,771 square meters of space. Its non -stop lift goes up to the top floor at a speed of 487 meters per minute.
At 421 meters high. Jin Mao Tower in Shanghai is the tallest building in China. Completed in 1999, it has 88 floors and has the world’s highest hotel rooms. This building was made to be strong-it can stand typhoon (台风) winds of up to 200 kilometers per hour.
Burj Dubai
A. A flat floor
B. A non-stop lift
C. A long passage
D. A two-level bridge

[单项选择]What are the twin blows to the Washington policy concerning Kosovo
A. Both talks with Yugoslav president and Congressional plan to debate the deployment U.S. troops failed.
B. Talks with Yugoslav president failed and Congress planned to debate the proposed deployment of U.S. troops in Kosovo.
C. Both Albright and Dole said no to Congressional plan to debate the proposed deployment of U.S. troops in Kosovo.
D. There has been no change in either the Yugoslavia’s or U.S. position during the eight hours of talks.

[填空题]This is the(twin)（）room.

[单项选择]The destruction of the Twin Towers in New York City ______ shock and anger throughout the world.
A. tempted
B. provoked
C. summoned
D. enveloped

[填空题]Both of the twin brothers are capable of doing (technique) ______ work at present.