皮皮学，免费搜题
登录
搜题
【单选题】
散装液体化学品的直接接触毒害性常用______衡量。1LD50;2EEL;3LC50。A.
①
B.
②
C.
③
D.
①或③
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】I like these English songs and they _____ many times on the radio. [ ]
A.
taught
B.
have taught
C.
are taught
D.
have been taught
【单选题】--Who taught ______ English?--Nobody. I taught all by ______
A.
you, ourselves
B.
you, myself
C.
your, myself
【单选题】在旅游故障出现的初期,导游员的正确做法是
A.
如果与旅行社无关,尽量撤清责任
B.
尽量第一时间有效地解决问题
C.
先不采取措施,等待旅行社指示
D.
多请示汇报,显示积极的态度
【单选题】She is an excellent teacher who has taught in four schools, ______ she taught, her principals had a high opinion of her.
A.
Wherever
B.
Everywhere
C.
In as much as
D.
In such schools that
【单选题】Are you clear _____ what has been taught in this class? That is: Is everything that has been taught in this class clear _____ you? [ ]
A.
with; with
B.
about; about
C.
about; with
D.
about; to
【单选题】English _____________ in more and more countries today.
A.
teaches
B.
teach C was taught D is taught
【单选题】The students ________ are expected to pass.
A.
were taught by Professor Deacon
B.
whom were taught by Professor Deacon
C.
when were taught by Professor Deacon
D.
Professor Deacon taught
【单选题】在旅游故障出现的初期,导游员的正确的做法是
A.
如果与旅行社无关,尽量撇清责任
B.
尽量第一时间有效地解决问题
C.
先不采取措施,等待旅行社指示
D.
多请示汇报,显示积极的态度
【单选题】在旅游故障出现的初期,导游员的正确做法是
A.
如果与旅行社无关,尽量撇清责任
B.
尽量第一时间有效解决问题
C.
先不采取措施,等待旅行社指示
D.
多请示汇报,显示积极的态度
相关题目：