S11系列变压器的空载损耗比S9系列低（）。A．20％B．25％C．30％D．35％

Some local residents joined the students’ protest. (英译汉)

Among its 1.8 million residents, there is on an average one Asian ______ (每4个居民中).

A．129 million

B．54 million

C．75 million

D．28 million

TerraMax will finish the race and win the grand prize of two million U.S. dollars.

A．Y

B．N

C．NG

TerraMax will finish the race and win the grand prize of two million U.S. dollars.

A．Y

B．N

C．NG

The U.S. Atomic Clock is so accurate that______.

A．it gains only a second in a million years

B．its deviation is within a second in a million years

C．it loses only a second in a million years

D．its deviation can never be detected

TerraMax will finish the race and win the grand prize of two million U.S. dollars.

A．Y

B．N

C．NG

A、must been in the U.S. for some time

B、must have been in the U.S. for some time

C、should have been in the U.S. for some time

D、May be in the U.S. for some time

A．$10 million

B．$47.4 million

C．no statistics available

D．nearly a 3 percent increase