可在BSL-2中进行高致病性禽流感的灭活材料实验活动。
参考答案:对
— How much is too much for a schoolbag?
— Experts say students should carry ______ more than 10 or 15 percent of their body weight. [ ]
A. no
B. not
C. any
D. far
机关年度预算编制应当按照二上二下的程序办理。