急性风湿热无心脏炎者，至少要卧床休息
A．1周
B．2周
C．3周
D．4周
E．6周
参考答案：B
At the end of 2003, there were around 3,000 foreign printing companies in China,____up
around 2 percent of national total.
A．made
B．to make
C．making
D．having made
小明血型为A型，他若输血应首先选择（ ）
A．O型血
B．A型血
C．B型血
D．AB型血
