任何病变损伤垂体前叶或下丘脑时可引起生长发育停滞()。 A.垂体性侏儒症 B.特发性 发布时间:2017-05-05 08:17 │ 来源:www.tikuol.com 题型:单项选择题 问题: 任何病变损伤垂体前叶或下丘脑时可引起生长发育停滞()。A.垂体性侏儒症B.特发性垂体功能不全C.继发性垂体功能不全D.原发性垂体性侏儒E.多发性垂体激素缺乏
题型:单项选择题 He has learned________,no matter what happens and how bad________seems today,life goes on and it will be better tomorrow.[ ]A. that; it B. it; thatC. it; it D. that; that 查看答案
题型:单项选择题 句型转换。1. They have a baseball. (改为一般疑问句) _________ _________ a baseball? 2. Lily has a computer. (改为否定句) Lily _________ _________ a computer.3. Does Mary have 4 baseballs? (作否定回答) No,_________ _________. 4. Her father watches TV every day. (改为否定句) Her father _________ _________ TV every day. 5. They have some balls. (改为单数句子) _________ _________ _________ ball.6. This story is boring. (改为同义句) This story_________ _________. 查看答案
题型:单项选择题 在如图所示的光电管的实验中,发现用一定频率的A单色照射光电管时,电流表指针会发生偏转,而用另一频率的B单色光照射时不发生光电效应,那么( )A.A光的频率小于B光的频率B.只要增强B光的强度,即可发生光电效应C.用A光照射光电管时流过电流表 G的电流方向是a流向bD.A光的在水中的传播速度大于B光在水中的传播速度 查看答案