On ________, my mother earns 5,000 yuan a month.
A. whole
B. total
C. average
D. balance
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The student hasn’t made much progress, ________ (the fact) that he’s had six months to do this.
A. given
B. since
C. now
D. considered
The victory came with a(n) ________: fifty soldiers lost their lives in the battle.
A. award
B. pay
C. reward
D. price
关于儿童时期适当的体育锻炼对身体各系统的影响,下面哪一项不正确。
A. 适当的体育锻炼可促使心肌发达,心室壁增厚,心脏体积增大,博血能力增强。
B. 体育锻炼可以刺激儿童青少年的神经系统,使它的兴奋和抑制过程增强,但对神经活动的平衡性与灵活性没有促进作用。
C. 体育锻炼可以增加骨骼组织的血液供应,从而促进造骨过程,促进骨组织的生长。
D. 体育锻炼可以是呼吸肌发达,胸廓扩大,呼吸深度增大,肺通气量和肺活量都会得到增强。