With a chemical r______, a new substance can form.

A、Performed inspections of plant equipment, including boilers, condensers, and chillers.

B、Troubleshooting of plant's chemical equipment

C、Performed load calculations for plant equipment

D、Wrote analytical reports detailing system performance

一、将下列英文专业术语与其英文解释配对，并将配对结果填在英文专业术语后的括号内（每小题2分，共30分） 1. receptor () 2. noncellular () 3. telomere () 4. genomic mapping () 5. splicing () 6. vascular bundle () 7. transcription () 8. taxnomy () 9. biodiversity () 10. pentose phophate pathway () 11. Taq polymerase () 12. ecotone () 13. cofactor () 14. meristem () 15. lymphatic system () a) a part of the transport system in vascular plants. b) a thermostable DNA polymerase named after the thermophilic bacterium Thermus aquaticus. c) a process that generates NADPH and pentoses. d) a part of protein sequence and structure that can evolve, function, and exist independently of the rest of the protein chain. e) a substance that needs to be present in addition to an enzyme for a certain reaction to be catalysed. f) a modification of an RNA after transcription, in which introns are removed and exons are joined. g) also referred to as expression profiling, the study of examination of the expression level of mRNAs in a given cell population. h) the full-scale of life and its processes. i) a chemical group or molecule (as a protein) on the surface or in the cell interior that has an affinity for a specific chemical group, molecule, or virus. j) long stretches of repetitives sequences in the eukaryotic chromosome. k) studies the code of life. l) the process of DNA convetring into mRNA. m) the part of the immune system comprising a network of conduits called lumphatic vessels. n) a transition area between two adjacent but different patches of landscape, such as forest and grassland. o) the tissue in most plants consisting of undifferentiated cells. p) the applied science or the biosocial movement which advocates the use of practices aimed at improveing the genetic composition of a population. q) wihout a cell structure. r) the set of rules by which information encoded in genetic material (DNA or mRNA sequences) is translated into proteins (amino acid sequences) by living cells. s) the practice and science of classification. t) the creation of a genetic map assigning DNA fragments to chromosomes.

This chemical is made（）a special formula．

A．from

B．of

C．according 120

D．in

A、chemical principles

B、scientific fields

C、natural changes

D、chemical pollution