题目内容
15、When ______ comes to research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.
A．it B．this C．that D．which
试题答案
15、A
When ______ comes to research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.
A. that B. it C. this D. what
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When ______ comes to research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.
- A.it
- B.this
- C.that
- D.which
When ______ comes to research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.
A. that B. it C. this D. what
查看习题详情和答案>>When ______ comes to research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.
A．it B．this C．that D．which
查看习题详情和答案>>When ______ comes to research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.
| A．that | B．it | C．this | D．what |
When ________ comes to research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals．
A．that
B．it
C．this
D．what
When it ______ research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.
A. refers to B. related to C. comes to D. talks to
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When it ______ research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.
| A．refers to | B．related to | C．comes to | D．talks to |