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【单选题】
Tell the engineer on duty to keep close watch over the machine ______ temperature is sometimes a bit too high.
A.
which
B.
what
C.
that
D.
whose
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【判断题】测功装置由测功器和测力装置组成
A.
正确
B.
错误
【判断题】When answering the question tell me about yourself, you can roughly follow the same structure of your résumé and go into every detail on your life-history.
A.
正确
B.
错误
【简答题】Fill in each blank with proper word form. The purpose of training __________ (qualify) teacher for those mountain areas is worthy of praise. Her __________ (yze) of the accident exactly showed wha...
【单选题】For the circular arch structure shown in the figure, the radius of the arch is R. When subjected to the load shown in the figure, the horizontal reaction force of support B is:【图片】
A.
P (to the right)
B.
P (to the left)
C.
P /2 (to the left)
D.
P /2 (to the right)
【多选题】Th1辅助性T细胞分泌的细胞因子的功能
A.
Th1细胞产生的IL-2能“充电”NK细胞,使它们能杀伤更多。
B.
类别转换时,Th1细胞产生的IFN-γ促使B细胞去生产人类IgA抗体。
C.
Th1细胞产生的IFN-γ充当一个“刺”,不断刺激巨噬细胞亢奋、参与战斗。
D.
Th1辅助性T细胞分泌的TNF有助于激活巨噬细胞和自然杀伤细胞。
【简答题】The ____ relation is the relation of substitutability, which is a relation between elements r____ with each other at a particular place of a structure.
【简答题】平衡力法转矩测量装置又称做测功器,一般由______、______和______组成。按照安装在平衡支承上的机器种类,可分为电力测功器、水力测功器等。
【单选题】______ is a subfield of linguistics that studies the sentence structure of language, i.e. how words are arranged in a sentence and in what order.
A.
Morphology
B.
Syntax
C.
Phonology
D.
Semantics
【多选题】Th 细胞 主要 表达 [填空(1)] , 根据功能和分泌细胞因子的不同 分为 [填空(2)] 、 [填空(3)] 和 [填空(4)] 三 种亚 型 。
A.
CD4
B.
Th1
C.
Th2
D.
Th0
【简答题】机电传动系统通常是由机械装置(结构功能)、 (驱动功能和能量转换功能)、传感器与检测装置(检测功能)、动力源(运转功能)、信息处理与控制装置(控制功能)五部分组成。
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