【单选题】He admired those ____ looked beautiful and colorful.
【单选题】.My twin sister is ______ me. Art is my favorite, but she doesn’t like it.
【单选题】My sister bought me a new camera. I don't know ______. Can you help me? [ ]
【单选题】He didn't notice me in the crowd but he spotted my sister who was _______ because of her red hair.
【单选题】My roommate wrote that letter ______ me. I couldn't do it because I sprained my wrist while playing volleyball.
【简答题】Remember those big, colorful books with large pictures of balls or apples when you were a little kid? Those have proven to be helpful, according to a number of studies. Between 1 and 5 years old, intr...
【单选题】-Haven’t you heard from your sister? -____________ She wrote a letter to me last week.
【简答题】Lego, the inventor of those colorful bricks that have inspired kids’ imaginations world-wide, has celebrated its 50th anniversary. On January 28, 1958, a man named Godtfred Kirk Christiansen created t...
【简答题】空气中的电场强度 V/m ,则位移电流密度Jd = 。