單項(xiàng)選擇題采用磷化鋁熏蒸殺蟲(chóng)時(shí),每個(gè)施放點(diǎn)用量不得超過(guò)()

A.30g
B.60g
C.90g
D.120g
E.150g


你可能感興趣的試題

1.單項(xiàng)選擇題相對(duì)來(lái)說(shuō),晝夜相對(duì)濕度變化規(guī)律,單波型最低時(shí)為()

A.日出前
B.6~8時(shí)
C.10~12時(shí)
D.12~14時(shí)
E.14~16時(shí)

2.單項(xiàng)選擇題相對(duì)來(lái)說(shuō),晝夜溫度變化規(guī)律,最高時(shí)一般為()

A.10~12時(shí)
B.12~14時(shí)
C.14~16時(shí)
D.16~18時(shí)
E.日出前

3.單項(xiàng)選擇題可導(dǎo)致中藥害蟲(chóng)生理失調(diào)或死亡的低濕度范圍在()

A.10%~20%
B.20%~30%
C.30%~40%
D.40%~50%
E.50%~60%

4.單項(xiàng)選擇題對(duì)中藥商品危害最嚴(yán)重的相對(duì)濕度范圍在()

A.30%~40%
B.40%~50%
C.60%~70%
D.70%~80%
E.80%~90%

5.單項(xiàng)選擇題中藥害蟲(chóng)的致死低溫區(qū)為()

A.10℃~15℃
B.5℃~10℃
C.0℃~5℃
D.0℃以下
E.-4℃以下