酸类抑菌剂山梨酸常用浓度为
A.0.15%~0.2%B.0.1%~0.2%C.0.15%~0.3%D.0.2%~0.3%E.0.15%~0.3%
参考答案:A
脊髓第10胸节约平对第几胸椎
A.第6
B.第7
C.第8
D.第9
E.第10
Directions: Write an essay of 160--200 words based on the following drawing. In your essay, you should
1) describe the drawing briefly,
2) explain its intended meaning, and
3) support your view with an example/examples.
You should write neatly on ANSWER SHEET 2.