【多选题】C 4 植物与C 3 植物相比,其发生光合作用的场所为()
【单选题】每个教师可以教授多门课程,每门课程至少有两名教师任课,从课程到教师之间的联系类型是 ( )
【单选题】将一棵有1000个结点的完全二叉树从上到下,从左到右依次进行编号,根结点的编号为1,则编号为49的结点的右孩子编号为()。
【单选题】某链条炉排锅炉所用燃煤的收到基元素分析成分如下:C ar=54.7%、H ar=0.78%、O ar=2.23%、N ar=0.28%、S ar=0.89%、A ar=33.12%、M ar=8%、Qar,net=18 187 kJ/kg,则该锅炉燃烧时的理论空气量为( )m3/kg。
【单选题】校团委可委托辅导员,根据团员数量选( )名委员,组成共青团支部委员会。
【单选题】下列叙述中,哪项是属于防治施工固体废弃物污染的?()。
A.
施工车辆运输建筑垃圾应当采取密封、覆盖措施,并按指定地点倾卸
C.
夜间运输材料的车辆进入施工现场,严禁鸣笛,装卸材料应做到轻拿轻放
【单选题】Part A Directions: Read the following texts and answer the questions which accompany them by choosing A, B, C or D. Mark your answers on ANSWER SHEET 1. In recent years, there has been a steady assaul...
A.
exhibits as an aggravating factor to people in poor health
B.
cures diseases such as stroke and circulatory disorders
C.
correlates highly with some diseases
D.
is irrelevant to people suffering from heart disease
【判断题】无线电波的传播速度不变,其频率越高,波长越长。
【单选题】下列元素原子半径的排列顺序正确的是 ................................................ ( ) a . Mg > B > Si >Ar b. Ar > Mg > Si > B c. Si > Mg > B >Ar d. B > Mg > Ar > Si