【简答题】Cathy is taking notes of the grammatical rules in class at Sunshine School, where she __________ English for a year. A.studies B.studied C.is studying D.has been studying
【单选题】根据现行《火灾自动报警系统设计规范》,设备面盘的排列长度大于4m时,其两端应设置宽度不小于()的通道
【单选题】The publication of _____ established Emerson as the most eloquent spokesman of the New England Transcenden- talism.
【单选题】According to the passage, the processing of the new antibiotic and vaccines becomes an engineering problem when ______.
A.
it involves the low-cost production of large quantities
B.
these items originate in the work of biochemistry
C.
people are engaged in safe operations in the test-tube stage
D.
business agents use efficient methods to market these items
【简答题】This is my first day at our new school. In the morning, I help my new teacher Mr Hu put some new English textbooks into a big box. And then I carry it to the classroom. The box is very heavy. I walk v...
【单选题】The publication of ______established Emerson as the most eloquent spokesman of the New England Transcendentalism.
【单选题】关于细菌对氧的需要分类,下列哪项是正确的( )