学习了物理知识后，可以帮助我们解决许多生活中的实际问题，例如家中买煤时，我们最应该关心煤的 [ ]
A．热值
B．密度
C．比热容
D．热量
答案：A
下列系谱图中，6号无患病基因，7号和8号婚后生一个同时患两种病男孩的概率是
A．1/48
B．1/24
C．1/16
D．无法确定
用所给词的适当形式填空。（10分）
小题1:She used ___________ (be) a teacher.
小题2:They got ___________ (marry) last year.
小题3:They ______________ (write) fifteen songs so far.
小题4:It is _____________ (meaning) to help people in need.
小题5:The ______________ (develop) of my town is very fast.
小题6:The ______________ (perform) all wore beautiful costumes.
小题7:I spend my pocket money on some _____________ (stationery).
小题8:These vegetables are ___________ (harm), you can eat them safely.
小题9:Look! She is dancing so _____________ (beautiful).
小题10:We are having a fantastic time __________ (visit) Disneyland.
