加词尾
加词缀
变换重音的位置
词根内部音素的变化
第1题:
A、异根
B、附加
C、内部屈折
D、零形式
第2题:
第3题:
A、加词尾
B、词根内部音素的变化
C、加词缀
D、变换重音的位置
第4题:
英语的man→men采用的语法手段是()
第5题:
第6题:
第二组:Magnetic pickup (MPU) sensors are devices which can be used in conjunction with electronic control modules for monitoring of parameters such as speed, direction of rotation and a variety of alarm conditions. MPU sensors are available in various sizes and types. Following are some guidelines for their selection on industrial engines. MPUs are located near a flywheel, camshaft or other type of gear with rotation relative to engine speed. The passing of the gear teeth through the MPU tip (pole) generates a voltage and frequency. This frequency is converted to a speed reference by a control module. It should be noted here that most MPUs will develop similar signals. However, the magnitude and strength of the signal is dependent on the size of the sensor in relation to the gear teeth, the clearance between the pole piece and the gear teeth, and various other factors. As a general rule of thumb, the following standards should be met:
①Dimension of tooth top surface should be equal to or more than the pole piece diameter.
②Tooth height should be equal to, or more than the space between teeth.
③The space between teeth should be approximately three times the pole piece diameter.
④Air gap (clearance) between tooth and pole piece should be between 0.015" to 0.030". MPUs
normally have 3/8", 5/8" threads and 2", 3" and 4" lengths. Determining which size is appropriate
depends on the space available for installation, the availability of pre-drilled holes and consideration to
those rules mentioned above. In most cases, these will be the only factors affecting the selcetion of a
MPU.
MPUs can be used to ____.①sense speed ②supply alarm ③sense direction of rotation.
A.①②
B.②③
C.①③
D.①②③
第7题:
第8题:
A、语法手段
B、词法手段
C、句法手段
D、语法范畴
第9题:
属于印欧语系拉丁语族的语言是()
A西班牙语法语意大利语
B英语德语法语
C法语德语俄语
D英语法语意大利语
第10题:
下列说法中,哪个的“语法”是“语法规律”的含义?()