【简答题】试述消化性溃疡并发上消化道大出血的止血措施。
【单选题】My teacher takes great trouble ______me learn English, since I have a lot of trouble _____it. [ ]
【单选题】"Without no seams nor needle work" means _________.
A.
with seams and with needle work
B.
without seam and without needle work
C.
without seams but with needle work
D.
with seams but without needle work
【单选题】Offices cannot work properly ______ certain important ______. [ ]
B.
without; pieces of equipment
D.
unless; pieces of equipment
【简答题】______是光合作用的主要器官,_______ 是光合作用的场所。
【判断题】光合作用释放的氧来自参与光合作用的水,因此水是光合作用不可缺少的原料。 [ ]