【判断题】“We specialize in this field for 12 years, with the strength of producing sneakers, which are superior quality with competitive price.”
【单选题】We specialize ____ all kinds of metals and are always ready to buy in large quantities.
【单选题】裸子植物中具能游动精子(称游动精子)的纲有()
【单选题】裸子植物中具能游动的精子(称游动精子)的纲有 。
【多选题】目前常见的角度测量仪器,其对中的方法有( )。
【单选题】—Shall we call for a taxi? —OK. Let me _______ the phone number in Yellow Pages. [ ]
【单选题】— You must be more next time. — Ok, I'll do my homework as as I can. [ ]