The European Central Bank has promised “unlimited” purchases of government bonds from the euro zone’s [填空1] economies.

全鸡蛋的生物价？ A、85 B、90 C、94 D、 100

单项选择题全鸡蛋的生物价？
A、85
B、90
C、94
D、 100

下列化合物的顺反构型可标记为： A、顺 B、 反 C、 (Z)  D、(E)

单项选择题下列化合物的顺反构型可标记为：
A、顺
B、 反
C、 (Z) 
D、(E)

How to answer the question of “What is the difference b...

单项选择题How to answer the question of “What is the difference between a soldier and a young girl?” with the use of pun?
A、They are different in gender.
B、A soldier is stronger.
C、A girl is more beautiful.
D、One powders the face; the other faces the powder.