如图所示,质量相同的两个小物体A、B处于同一高度。现使A沿固定的光滑斜面无初速地自由下滑,而使B无初速地自由下落,最后A、B都运动到同一水平地面上。不计空气阻力。则在上述过程中,A、B两物体A.所受重力的冲量相同B.所受重力做的功相同C.所受合力的冲量相同D.所受合力做的功相同
从Ⅱ栏中找出能应答Ⅰ栏中句子的选项,并将其序号填入题前的括号内。 Ⅰ ( ) (1)Where are you from? ( ) (2)May I speak to Helen? ( ) (3)What’s the weather like in spring? ( ) (4)Happy Teachers’ Day! ( ) (5)How can I get to the post office? Ⅱ
E. It’s warm and windy.
( ) I have apple. apple is on the table. A. a, An B. the, The C. an, The
( ) It is cold today, you must _______ your coat. A. take off B. put on C. pick up
( ) There ________ some milk in the fridge a moment ago. A. are B. was C. were
( ) —What’s your father’s ? —He is a worker. A. job B. name C. address