采用高温闷棚方法防治黄瓜霜霉病的方法是:头天浇水后,在晴天中午闭棚2h,使植株生长点附近温度升到()℃,然后放风降温。
A.30
B.45
C.60
D.75
参考答案:B
— Thomas didn't come to school for the meeting, did he?
— No. He ____. The meeting had been cancelled.[ ]
A. shouldn't have come
B. should not come
C. didn't need to come
D. wouldn't have come
《鉴定书》应当载明()、送鉴日期、鉴定物品、鉴定方法和过程、鉴定结论等内容。
A、鉴定申请人
B、办案执法人员
C、当事人
D、送鉴执法部门