化学用语是学习化学的重要工具。下列化学用语及其表述正确的是() A . :氢氧化铝中铝元素的化合价为+3价 B . mg:镁元素符号 C . Fe3+:一个亚铁离子带三个单位正电荷 D . Cl2:两个氯原子 答案:AI spent two months with an American family
last year when I studied in America.
It is said, “The best house is in the USA, the
best wife is in Japan, and the best food is in China.” So I take ____1____ and
pleasure to ____2____ “the best food” for my American family. Each day I perform (表演) my play in ____3____
way: changing the dishes colour, the meat's type or the soup's (汤) style (风味). ____4____, my American
friends can discover the ____5____ of eating Chinese food. Because of my
____6____ job, I'm ____7____ rewarded by their ____8____
of appreciation: “excellent”.
But the joke
is here, yesterday, I cooked Sichuan-style ____9____ for dinner. I was
____10____ by my achievement.
( )1. A. worry B.
attention C.
delight D.
pride
( )2. A. buy B.
fetch C.
cook D.
leave
( )3. A. their B.
a new C.
the same D.
a simple
( )4. A. Thus B.
Suddenly C.
For this D.
However
( )5. A. way B.
joy C.
trouble D.
importance
( )6. A. hard B.
daily C.
good D.
new
( )7. A. soon B.
hardly C.
quickly D.
often
( )8. A. expressions B. sentences C.
actions D.
habits
( )9. A. meat B.
fish C.
soup D.
egg
( )10. A. praised B.
pleased C.
astonished D.
surprised