(1)原式=43-93-3=-63;
(2)原式=2×1+2-2=2.
After the earthquake, the first thing the local government did was to provide ________ for the
homeless families. [ ]
A. occupation
B. furniture
C. equipment
D. accommodation
从口腔摄入的食物到达(),大部分己被分解,转变成低分子的水溶性物质,这些物质透过肠壁被机体吸收利用。
A、食道
B、胃
C、小肠
D、大肠