答案：C分析：空格前为状语，空格处缺句子主语。(A),(B),(D)均

答案：C分析：空格前为状语，空格处缺句子主语。(A),(B),(D)均不能直接作主语，故选(C).参考译文：对于任何强力的胶粘剂来说，需要粘和的表面都必须是干净的，而且不含水分和油脂。

Kết quả (Anh) 1:

Answer: c analysis: space before going to space short of the subject of the sentence. (A), (b), (d) cannot be directly used as a subject, so choose (c). translation: for any strong adhesive, need to stick and the surface must be clean and does not contain moisture and grease.

Kết quả (Anh) 2:

Answer: C analysis: Before a space is adverbial, lack of space at the subject of the sentence. (A), (B), (D) were not directly as the subject, so choose (C) Passage: For any strong adhesive, the need to stick and the surface must be clean and free of moisture and grease.

Kết quả (Anh) 3:

The answer: C analysis: before the space is an adverbial, the space is a lack of sentence subject. (A) () (B), (D) are not directly used as the subject, so the selection (C).