肝门静脉的组成及特点()
A. 由脾静脉和肠系膜下静脉在胰颈后方合成
B. 为肝的营养血管
C. 起、止均为毛细血管
D. 缺乏瓣膜
E. 与上、下腔静脉系间没有吻合
(单选)Age alone is a poor ( )of a person's capability, so we must consider other aspects.
A. indicate
B. indicates
C. indicater
D. indicator
(单选)Testing students by examinations has long been regarded as a reliable way to ( )students’ ability.
A. assess
B. indicate
C. decrease
D. alter
(单选)This is our country's domestic affair; we do not expect other countries to( ) .
A. undermine
B. interfere
C. comparable
D. depress