一般每个课程时间段,培训师可采用()培训方法。
A.只能使用一种
B.交替使用两种
C.使用三种或以上
D.交替或运用几种
参考答案:D
Investors can diversify their direct real estate holdings through all of the following vehicles EXCEFF:()
A. commingled funds.
B. co-operative shares.
C. real estate investment trusts (REITs).
混凝土灌注桩施工中,间距允许偏差为()mm。
A、±50
B、±100
C、±150