依据《型钢水泥土搅拌墙技术规范》规定型钢水泥土搅拌墙中的水泥土搅拌桩应进行桩身强度检测，检测方法宜采用（）。
参考答案：浆液试块强度试验
There are so many kinds of Mp3 in the shop. We can't decide . [ ]
A. what to buy
B. to buy what
C. which to buy
D. to buy which
双赢原则
