ly some Japanese have been trying to make conflicts with China, ________ effects we are greatly concerned.

255. The college entrance examination isdrawing near and all the students are ploughing through their studies. Whatdoes the underlined part means _____.

If you’re unable to come to the interview, you should us immediately.

(2013·杭州模拟)Encouraged by my science teacher, I set about my studies on developing my product, 　　　　I hope I will succeed in applying for a patent(专利权)

下列各句中，标点符号使用不正确的一项是（ ）