A、in the market of
B、in the demand of
C、in the market for
D、in the demand for
A、in the market of
B、in the demand of
C、in the market for
D、in the demand for
A、not
B、not to
C、not touch
D、not do
B.转动;分钟;形容词
C.点名;分钟;休会
B.those
C.these
D.that
A、Introduction
B、Materials and Methods
C、Results
D、Discussion
A、With the boundary as the boundary, it can be divided into the greater pelvis and the lesser pelvis
B、When upright, the male pelvis tilts more than the female
C、The opening under the lesser pelvis is flat
D、The male pelvis is oval and the female pelvis is heart-shaped
Read the following abstract. Which sentences are "the results" part? ①Error analysis undoubtedly has made much contribution to the study on second language learning. ②It not only throws some light on the process of second language learning,but also helps US gain some insights into the strategies learners employ in the learning process.③This paper adopts quantitative and qualitative methods and analyses the lexical errors of 290 compositions in Chinese Learner English Corpus(CLEC).④The results show that:the lexical errors account for 59.33%of the total language errors, ⑤the most frequent lexical errors are spelling errors,and the next are substitution errors; ⑥there are negative correlations between lexical errors and writing quality; ⑦there is a significant difference in lexical errors made by students of different learning levels and different writing ability.
A、①②
B、④⑤
C、③④
D、⑥⑦
Translate the following English into Chinese. Automatic block system is that within automatic block district, each section is divided by color light passing signals into several consecutive subsection or block. The occupation of subsection by train is authorized by the permissive aspect of the color light passing signals. Automatic block system shortens the space interval between trains in the same direction and increases running capacity at sections. But on single track lines where trains running in both directions on the same track, the efficiency of automatic block system is not so evident.
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