由于惊恐、疼痛等导致阴阳不和，气血运行乖张，可见（）
A.结脉
B.数脉
C.动脉
D.滑脉
E.促脉
参考答案：B
石灰、石膏和水泥等胶凝材料掺砂或矿渣等细骨料，加水拌和而成的，用以砌筑砌体的是（）.
A.混凝土
B.石灰
C.砂浆
D.水泥
Timmy goes to school _____ every day. It's 5 minutes' walk from his home to school .[ ]
A. in a bus
B. by MTR
C. on foot
D. by tram
