玻尿酸有()作用,同时具有杀菌作用,人体的一种酸性物质。
参考答案:补水,锁水
根据句意,用括号内所给动词的适当形式填空。(必要时加助动词或情态动词)
小题1:Mr Zhang ______(teach)us English three years ago.
小题2:Peter turned off the computer after he finished______ (write)an e-mail.
小题3:—Where’s Miss Wang?
一Look,she______(talk)with the students.
小题4:Mr Liu isn’t here now.He______ (go)to Beijing.
小题5:The children will go to the zoo if it______ (not rain)this Saturday.
小题6:There______ (be) a meeting in our school tomorrow afternoon.
小题7:Mr Green______(watch)TV at this time last night.
小题8:You’d better______(eat)less food before you go to bed.
小题9:My teacher told me that light______(travel)much faster than sound.
小题10:English______ (speak) by many people in the world.
前列腺增生多发生在:()
A.前叶区
B.周边区
C.两侧叶区
D.移行区
E.无差别