【单选题】( )is the rate at which energy is used up in maintaining basal metabolism.
C.
Metabolic response to food
【单选题】下列叙述错误的是()
A.
实践表明,双管流量计的信一噪比大,流通能力大,故被广泛采用
B.
要想提高科氏力作用在测量管上的效率,必须在结构形状上提高测量管整体的系统弹性,减少刚性,选用弹性好、性能稳定的材料,并准确选择系统的振荡频率,以达到同样的科氏力作用下,测量管的变形量增加
C.
一般来说,测量管的管壁越薄、长度越长,作用在管上的科氏力就越不明显
D.
测量管的开关在制造过程中应保证其对称性,双测量管系统中应保证两根管的一致性。传感器的定位要准确,以减少由于密度或粘度对测量精度的影响
【单选题】As a student, we should learn how _____ the words in the dictionary. [ ]
【单选题】If you don't know how to spell a new word, you'd better ______. [ ]
C.
look it up in a dictionary
D.
look up it in a dictionary
【单选题】If you don't know how to spell new words , ______ in the dictionary. [ ]
【单选题】If you don't know how to spell a new word, you'd better ______. [ ]
C.
look it up in an dictionary
D.
look it up in a dictionary