下列属于时间维度环境教育的是()
A.社区环境教育
B.学校环境教育
C.家庭环境教育
D.儿童环境教育
参考答案:D
The car ____ at the present speed until it reaches the foot of the mountain at about ten o'clock tonight.
A.went
B.is going
C.goes
D.will be going
沙漠中的仙人掌在进化过程中叶子演化成“刺”,以适应( )
A.高温
B.缺无机盐
C.缺水
D.缺土壤